{"product_id":"ugreen-30445-bluetooth-5-3-audio-receiver-aux-rca","title":"UGREEN 30445 CM123 Bluetooth 5.0 AUX\/RCA Receiver","description":"\u003cstyle\u003e\/* UGREEN India product description layout *\/\n.ugd-story { --ugd-acc: #169b45; --ugd-ink: #14181c; --ugd-text: #4a5258; --ugd-line: #e3e6e8; --ugd-soft: #f4f5f6; color: var(--ugd-ink); font: 16px \/ 1.7 -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Arial, sans-serif; width: 100%; max-width: 1200px; margin: 0px auto; container-type: inline-size; text-align: left; overflow-wrap: anywhere; }\n.ugd-story * { box-sizing: border-box; }\n.ugd-story :is(h2, h3, h4, p, figure, ul, ol, dl, dd) { margin: 0px; padding: 0px; }\n.ugd-story :is(h2, h3, h4) { color: var(--ugd-ink); font-weight: 700; letter-spacing: -0.02em; text-transform: none; }\n.ugd-story h2 { font-size: clamp(26px, 4.2cqi, 42px); line-height: 1.15; }\n.ugd-story h3 { font-size: clamp(21px, 3cqi, 30px); line-height: 1.2; }\n.ugd-story h4 { font-size: 18px; line-height: 1.35; 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}\n.ugd-story .ugd-specs dt { font-weight: 600; font-size: 14px; }\n.ugd-story .ugd-specs dd { color: var(--ugd-text); font-size: 14px; }\n.ugd-story details { border-bottom: 1px solid var(--ugd-line); }\n.ugd-story summary { cursor: pointer; list-style: none; padding: 16px 32px 16px 0px; font-weight: 600; font-size: 16px; position: relative; }\n.ugd-story summary::-webkit-details-marker { display: none; }\n.ugd-story summary::after { content: \"+\"; position: absolute; right: 4px; top: 12px; font-size: 22px; color: var(--ugd-acc); }\n.ugd-story details[open] summary::after { content: \"–\"; }\n.ugd-story details p { padding: 0px 0px 16px; }\n.ugd-story .ugd-trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; list-style: none; background: var(--ugd-ink); border-radius: 18px; padding: clamp(18px, 3cqi, 28px); }\n.ugd-story .ugd-trust li { color: rgb(255, 255, 255); font-size: 14px; line-height: 1.45; }\n.ugd-story .ugd-trust b { display: block; color: rgb(255, 255, 255); font-size: 15px; }\n.ugd-story .ugd-trust span { color: rgb(185, 194, 199); }\n@container (max-width: 700px) {\n.ugd-story .ugd-hero, .ugd-story .ugd-feature, .ugd-story .ugd-box { grid-template-columns: 1fr; }\n.ugd-story .ugd-hero figure { order: -1; }\n.ugd-story .ugd-feature.ugd-rev figure { order: 0; }\n.ugd-story .ugd-stats { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-stats div:nth-child(3) { border-left: 0px; }\n.ugd-story .ugd-stats div:nth-child(n+3) { border-top: 1px solid var(--ugd-line); }\n.ugd-story .ugd-tests { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-uses { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-uses figure:last-child { grid-column: 1 \/ -1; }\n.ugd-story .ugd-specs { grid-template-columns: 1fr; }\n.ugd-story .ugd-specs div:nth-child(2n+1) { padding-right: 0px; }\n.ugd-story .ugd-trust { grid-template-columns: 1fr 1fr; }\n}\n@container (max-width: 380px) {\n.ugd-story .ugd-box ol { columns: 1; }\n}\n.ugd-story .ugd-feature.ugd-noimg { grid-template-columns: 1fr; max-width: 780px; }\n.ugd-story .ugd-stats.ugd-s2 { grid-template-columns: 1fr 1fr; }\n.ugd-story .ugd-uses figcaption, .ugd-story figure figcaption { color: var(--ugd-ink); }\n.ugd-story .ugd-box.ugd-noimg { grid-template-columns: 1fr; }\n.product-details rte-formatter \u003e .ugd-wide { max-width: none !important; width: 100% !important; }\n.product-details rte-formatter \u003e .ugd-story.ugd-wide { max-width: 1200px !important; }\n.ugd-story ul.ugd-nav,.ugd-story ul.ugd-chips,.ugd-story ul.ugd-trust{list-style:none!important;padding-left:0!important;margin-left:0!important}.ugd-story ul.ugd-nav li,.ugd-story ul.ugd-chips li,.ugd-story ul.ugd-trust li{list-style:none!important}.ugd-story ul.ugd-nav li::before,.ugd-story ul.ugd-chips li::before,.ugd-story ul.ugd-trust li::before,.ugd-story ul.ugd-nav li::marker,.ugd-story ul.ugd-chips li::marker{content:none!important;display:none!important}\n\u003c\/style\u003e\u003cdiv class=\"ugd-story ugd-wide\"\u003e\n\u003cheader class=\"ugd-hero\"\u003e\u003cdiv\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cul class=\"ugd-chips\"\u003e\n\u003cli\u003eCM123 • 3.5MM + RCA • RECEIVER ONLY\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.0\u003c\/li\u003e\n\u003cli\u003eSKU 30445\u003c\/li\u003e\n\u003cli\u003eCM123\u003c\/li\u003e\n\u003cli\u003eReceiver only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/header\u003e\u003cdiv class=\"ugd-stats\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e5.0 + EDR\u003c\/b\u003e\u003cspan\u003eBluetooth version\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eReceiver only\u003c\/b\u003e\u003cspan\u003eWireless role\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eA2DP listed\u003c\/b\u003e\u003cspan\u003eProfiles\/evidence\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e20Hz–22kHz\u003c\/b\u003e\u003cspan\u003eFrequency response\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cnav\u003e\u003cul class=\"ugd-nav\"\u003e\n\u003cli\u003e\u003ca href=\"#ugd-features\"\u003eFeatures\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#ugd-specs\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#ugd-faqs\"\u003eFAQs\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/nav\u003e\u003cdiv class=\"ugd-section\" id=\"ugd-features\"\u003e\n\u003cdiv class=\"ugd-head\"\u003e\n\u003cspan class=\"ugd-eyebrow\"\u003eFeatures\u003c\/span\u003e\u003ch3\u003eWhat it does well.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eKey features\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eRole.\u003c\/b\u003e a compact Bluetooth 5.0 music receiver for adding wireless playback to an amplifier, powered speaker, stereo, soundbar or car audio system with 3.5mm or left\/right RCA input.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAudio path.\u003c\/b\u003e A phone, tablet or computer sends Bluetooth music to CM123. The receiver outputs analogue stereo through 3.5mm and\/or its red\/white RCA jacks. It does not send television audio to Bluetooth headphones.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCodec boundary.\u003c\/b\u003e The Bluetooth 5.0 evidence lists A2DP and EDR but does not publish a dependable codec list. SBC\/AAC, aptX, LDAC and lossless Bluetooth are therefore not promised.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower design.\u003c\/b\u003e Up to 8 hours playback is listed. Runtime is a laboratory maximum and changes with volume, battery age, temperature and radio conditions. Micro-USB power\/charging, about 2 hours to full. The receiver can be used while powered, but a noisy USB supply may introduce audible interference.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eAudio direction and connector roles\u003c\/h4\u003e\n\u003cp\u003eA phone, tablet or computer sends Bluetooth music to CM123. The receiver outputs analogue stereo through 3.5mm and\/or its red\/white RCA jacks. It does not send television audio to Bluetooth headphones.\u003c\/p\u003e\n\u003cp\u003eConnector rule: a source\/output must feed a destination\/input. USB power, USB host data, analogue AUX and Bluetooth radio roles are separate even when one enclosure handles several of them.\u003c\/p\u003e\n\u003cp\u003eStart safely: set the correct mode, select the target input and lower every volume control before testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eSound, codecs, calls and latency\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eCodecs.\u003c\/b\u003e The Bluetooth 5.0 evidence lists A2DP and EDR but does not publish a dependable codec list. SBC\/AAC, aptX, LDAC and lossless Bluetooth are therefore not promised.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLatency.\u003c\/b\u003e No low-latency codec or millisecond result is for this revision. Use a wired connection where lip-sync or instrument monitoring is critical.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMicrophone and calls.\u003c\/b\u003e No microphone or call-return path is documented. Treat SKU 30445 as a music receiver, not a speakerphone or computer headset adapter.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReal-world fidelity.\u003c\/b\u003e Source file, negotiated codec, radio conditions, analogue cable, amplifier and speakers\/headphones all affect the result. A newer Bluetooth number is not automatically higher sound quality.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eUse scenarios\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eScenario 1.\u003c\/b\u003e Modernising an older amplifier with RCA inputs.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eScenario 2.\u003c\/b\u003e Adding Bluetooth to powered desktop speakers through 3.5mm.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eScenario 3.\u003c\/b\u003e Feeding two compatible line inputs from the two analogue output formats.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eScenario 4.\u003c\/b\u003e Temporary car AUX playback where the receiver can be charged safely.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eScenario 5.\u003c\/b\u003e Using while powered for longer home listening.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-box ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eSetup and usability guidance\u003c\/h4\u003e\n\u003cp\u003eUsability rule: establish one clean path first. Add a second source, listener, output or peripheral only after the first works reliably.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eControls.\u003c\/b\u003e A multifunction button and status LEDs manage power and pairing. Volume remains primarily controlled by the source and connected audio system.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSecond-device behaviour.\u003c\/b\u003e media verifies that the 3.5mm and RCA outputs can feed two compatible audio inputs\/speaker systems at the same time. It does not verify two-phone Bluetooth multipoint.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecovery.\u003c\/b\u003e Forget CM123\/UGREEN on the source, disconnect any competing saved source, power-cycle the receiver and re-pair within one metre. Follow only the CM123 button timing.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStep 1: Charge or power CM123.\u003c\/li\u003e\n\u003cli\u003eStep 2: Connect 3.5mm or RCA output to a line\/AUX input; an RCA cable is not listed in the box.\u003c\/li\u003e\n\u003cli\u003eStep 3: Select the matching input and begin with low amplifier volume.\u003c\/li\u003e\n\u003cli\u003eStep 4: Hold the multifunction button as documented, then choose the receiver in the source Bluetooth menu.\u003c\/li\u003e\n\u003cli\u003eStep 5: Play a test track and raise volume gradually; test each wired output separately before using both.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-box ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eCompatible devices and systems\u003c\/h4\u003e\n\u003cp\u003eClass: Bluetooth music sources including compatible phones, tablets and computers; analogue destinations with 3.5mm AUX or left\/right RCA line input.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMatch the operating-system\/audio profile and connector role, not only the Bluetooth logo.\u003c\/li\u003e\n\u003cli\u003eConfirm whether you need programme audio, microphone return, peripheral data or file transfer; these use different profiles.\u003c\/li\u003e\n\u003cli\u003eFor AUX\/RCA products, confirm the destination is a line-level input and already has its own amplifier.\u003c\/li\u003e\n\u003cli\u003eFor PC adapters, verify driver requirements and disable a competing built-in Bluetooth radio.\u003c\/li\u003e\n\u003cli\u003eFor two-way products, confirm that the chosen TX or RX mode matches the wired device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat this product does\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eReceives Bluetooth audio from a compatible source.\u003c\/li\u003e\n\u003cli\u003eOutputs analogue audio to the stated 3.5mm and\/or RCA line input.\u003c\/li\u003e\n\u003cli\u003eSupports only the call, control and source-count behaviour documented for this revision.\u003c\/li\u003e\n\u003cli\u003eReconnects to a saved compatible source when powered and available.\u003c\/li\u003e\n\u003cli\u003eModernises existing audio equipment without replacing its amplifier or speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat this product does not do\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ereceiver only; no microphone, calls, Bluetooth-headphone transmission, optical\/coaxial audio, multipoint or published codec guarantee; RCA is line-level, not passive-speaker power.\u003c\/li\u003e\n\u003cli\u003eDoes not guarantee uninterrupted wireless service through metal, walls, crowds or heavy 2.4GHz interference.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a damaged source, USB port, AUX socket, amplifier or speaker.\u003c\/li\u003e\n\u003cli\u003eDoes not make a connector compatible merely because it fits physically.\u003c\/li\u003e\n\u003cli\u003eDoes not prove ANC, aptX, LDAC, multipoint or microphone return from the Bluetooth version number alone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat to do\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eCheck the label.\u003c\/b\u003e Confirm SKU, model and stored revision on the product or box before relying on a specification.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBegin with one endpoint.\u003c\/b\u003e Pair and test one path before adding any supported second device or output.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLower volume first.\u003c\/b\u003e Protect hearing and speakers when changing mode, output, codec, call profile or device.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKeep connections dry.\u003c\/b\u003e Inspect USB and audio plugs, remove debris without metal tools and dry completely before power.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eUse official drivers\/manuals.\u003c\/b\u003e Use the CM\/BT model instructions; related UGREEN revisions can use different buttons and radios.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePause before switching.\u003c\/b\u003e When two sources are connected, pause the current programme before starting the other.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWhat not to do\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eDo not infer features.\u003c\/b\u003e Bluetooth 5.x\/6.0 alone does not establish codec, ANC, microphone, multipoint or delay.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDo not force plugs.\u003c\/b\u003e Stop if a connector does not align; check port type, direction, damage and case clearance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDo not use speaker-level output.\u003c\/b\u003e AUX\/RCA receiver inputs are line-level; passive speakers still need an amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDo not pair while moving.\u003c\/b\u003e Configure car and aircraft audio before movement and follow local\/crew instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDo not charge damaged cells.\u003c\/b\u003e Stop for swelling, leakage, odour or abnormal heat and seek proper battery disposal.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDo not borrow reset timing.\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eBattery, charging and realistic runtime\u003c\/h4\u003e\n\u003cp\u003eBattery\/power: Up to 8 hours playback is listed. Runtime is a laboratory maximum and changes with volume, battery age, temperature and radio conditions.\u003c\/p\u003e\n\u003cp\u003eCharging\/connection: Micro-USB power\/charging, about 2 hours to full. The receiver can be used while powered, but a noisy USB supply may introduce audible interference.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePublished runtime is normally a controlled maximum; volume, calls, codec, temperature, range and battery age can shorten it.\u003c\/li\u003e\n\u003cli\u003eUSB-powered models have no reserve runtime and stop when vehicle\/computer power stops.\u003c\/li\u003e\n\u003cli\u003eUse compliant, undamaged power sources and disconnect any product that becomes unusually hot.\u003c\/li\u003e\n\u003cli\u003eDo not leave rechargeable products empty for months; follow the manual for long-term storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-rev ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eWarnings and limitations\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHearing: begin at low volume, limit exposure and stop if you notice discomfort or ringing. Bluetooth features and noise processing are not hearing protection.\u003c\/li\u003e\n\u003cli\u003eBattery: never crush, puncture, short, burn or charge a swollen, leaking, wet or unusually hot rechargeable product. USB-powered models still require a sound, compliant 5V source.\u003c\/li\u003e\n\u003cli\u003eAircraft: follow crew instructions, use only permitted headphone outputs and keep wireless devices off whenever directed. Carry lithium products in accordance with airline rules.\u003c\/li\u003e\n\u003cli\u003eDriving: pair, mount, select sources and set volume while parked. Hands-free calling does not remove attention or legal responsibilities.\u003c\/li\u003e\n\u003cli\u003eWater: This product does not has a IP rating. Keep adapters, plugs and charging ports dry; never connect power while damp.\u003c\/li\u003e\n\u003cli\u003eHeat and storage: do not leave the product on a hot dashboard, near a heater or in direct sun. Keep small adapters and cables away from children and pets.\u003c\/li\u003e\n\u003cli\u003eAudio ports: connect only to the stated headphone\/AUX line-level role. Never connect a 3.5mm\/RCA port to mains, passive-speaker output or an unknown industrial signal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"ugd-feature ugd-noimg\"\u003e\u003cdiv\u003e\n\u003ch4\u003eTroubleshooting and reset\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eNo pairing.\u003c\/b\u003e Bring devices close, verify power\/mode, disconnect competing saved devices and pair one endpoint first.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConnected but silent.\u003c\/b\u003e Check source playback, OS output, TX\/RX direction, AUX input selection, cable seating and both volume controls.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAudio but no microphone.\u003c\/b\u003e No microphone or call-return path is documented. Treat SKU 30445 as a music receiver, not a speakerphone or computer headset adapter. Confirm the call app input and permissions only where a microphone path is documented.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDrop-outs.\u003c\/b\u003e Reduce distance and metal\/body obstruction, move from crowded 2.4GHz radios and test one connection at a time.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDelay.\u003c\/b\u003e Compare with a wired path; no unstated codec or Bluetooth version can remove all source and endpoint buffering.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReset path.\u003c\/b\u003e Forget CM123\/UGREEN on the source, disconnect any competing saved source, power-cycle the receiver and re-pair within one metre. Follow only the CM123 button timing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ugd-section\" id=\"ugd-specs\"\u003e\n\u003cdiv class=\"ugd-head\"\u003e\n\u003cspan class=\"ugd-eyebrow\"\u003eSpecifications\u003c\/span\u003e\u003ch3\u003eAt a glance.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdl class=\"ugd-specs\"\u003e\n\u003cdiv\u003e\n\u003cdt\u003eProduct \/ model\u003c\/dt\u003e\n\u003cdd\u003eUGREEN Hi-Fi Bluetooth receiver \/ CM123\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eSKU \/ colour\u003c\/dt\u003e\n\u003cdd\u003e30445 \/ black\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eBluetooth version\u003c\/dt\u003e\n\u003cdd\u003e5.0 + EDR, stored revision\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eWireless role\u003c\/dt\u003e\n\u003cdd\u003eReceiver only\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eProfiles\/evidence\u003c\/dt\u003e\n\u003cdd\u003eA2DP listed; codec list not published\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eAudio outputs\u003c\/dt\u003e\n\u003cdd\u003e3.5mm stereo and left\/right RCA\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eOutput use\u003c\/dt\u003e\n\u003cdd\u003eOutputs may be used individually or together\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eFrequency response\u003c\/dt\u003e\n\u003cdd\u003e20Hz–22kHz\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eListed SNR \/ load\u003c\/dt\u003e\n\u003cdd\u003e90dB; RL=16Ω\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eRuntime\u003c\/dt\u003e\n\u003cdd\u003eUp to 8 hours\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eCharging\u003c\/dt\u003e\n\u003cdd\u003eMicro-USB, about 2 hours; use while powered\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eListed range\u003c\/dt\u003e\n\u003cdd\u003eUp to 10m \/ 33ft in open conditions\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e66.6 × 66.6 × 24mm listed\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIn the box\u003c\/dt\u003e\n\u003cdd\u003eConfirm this SKU\/revision on the sealed product.\u003cbr\u003eConfirm TX, RX or Windows-host direction.\u003cbr\u003eConfirm every wired input\/output and required power source.\u003cbr\u003eConfirm call\/microphone, codec and second-device needs separately.\u003cbr\u003eCheck whether any cable, charger or flight adapter you require is actually listed.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003cp class=\"ugd-note\"\u003eListed ranges and runtimes are qualified maxima in suitable conditions, not universal guarantees.\u003c\/p\u003e\n\u003cp class=\"ugd-note\"\u003ePackage: CM123 receiver, Micro-USB charging cable, 1m 3.5mm audio cable and manual; an RCA cable and charger are not listed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ugd-section\" id=\"ugd-faqs\"\u003e\n\u003cdiv class=\"ugd-head\"\u003e\n\u003cspan class=\"ugd-eyebrow\"\u003eFAQs\u003c\/span\u003e\u003ch3\u003eQuestions buyers ask.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat exactly is UGREEN 30445?\u003c\/summary\u003e\u003cp\u003eIt is a compact Bluetooth 5.0 music receiver for adding wireless playback to an amplifier, powered speaker, stereo, soundbar or car audio system with 3.5mm or left\/right RCA input.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does this receiver connect to?\u003c\/summary\u003e\u003cp\u003eA phone, tablet or computer sends Bluetooth music to CM123. The receiver outputs analogue stereo through 3.5mm and\/or its red\/white RCA jacks. It does not send television audio to Bluetooth headphones.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich codecs does SKU 30445 support?\u003c\/summary\u003e\u003cp\u003eThe Bluetooth 5.0 evidence lists A2DP and EDR but does not publish a dependable codec list. SBC\/AAC, aptX, LDAC and lossless Bluetooth are therefore not promised.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs low latency guaranteed?\u003c\/summary\u003e\u003cp\u003eNo low-latency codec or millisecond result is for this revision. Use a wired connection where lip-sync or instrument monitoring is critical.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDo microphone and calls work?\u003c\/summary\u003e\u003cp\u003eNo microphone or call-return path is documented. Treat SKU 30445 as a music receiver, not a speakerphone or computer headset adapter.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan two phones or outputs be used?\u003c\/summary\u003e\u003cp\u003emedia verifies that the 3.5mm and RCA outputs can feed two compatible audio inputs\/speaker systems at the same time. It does not verify two-phone Bluetooth multipoint.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat battery life or power does it use?\u003c\/summary\u003e\u003cp\u003eUp to 8 hours playback is listed. Runtime is a laboratory maximum and changes with volume, battery age, temperature and radio conditions. Micro-USB power\/charging, about 2 hours to full. The receiver can be used while powered, but a noisy USB supply may introduce audible interference.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich devices and systems are compatible?\u003c\/summary\u003e\u003cp\u003eBluetooth music sources including compatible phones, tablets and computers; analogue destinations with 3.5mm AUX or left\/right RCA line input.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should I do if pairing fails?\u003c\/summary\u003e\u003cp\u003eForget CM123\/UGREEN on the source, disconnect any competing saved source, power-cycle the receiver and re-pair within one metre. Follow only the CM123 button timing.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is in the package?\u003c\/summary\u003e\u003cp\u003eCM123 receiver, Micro-USB charging cable, 1m 3.5mm audio cable and manual; an RCA cable and charger are not listed\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should it not be used for?\u003c\/summary\u003e\u003cp\u003ereceiver only; no microphone, calls, Bluetooth-headphone transmission, optical\/coaxial audio, multipoint or published codec guarantee; RCA is line-level, not passive-speaker power.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cscript\u003e(function(){function m(){var s=document.querySelector(\".ugd-story,.ht-story,.ava-story\");if(!s)return;var d=s.closest(\".product-block--description\");var a=document.querySelector(\"article.product--outer\");if(!d||!a||d.closest(\".ugd-fullwrap\"))return;var w=document.createElement(\"div\");w.className=\"ugd-fullwrap\";w.style.cssText=\"max-width:1200px;margin:40px auto 0;padding:0 24px;box-sizing:border-box;width:100%\";w.appendChild(d);a.parentNode.insertBefore(w,a.nextSibling);}if(document.readyState!==\"loading\")m();else document.addEventListener(\"DOMContentLoaded\",m);})();\u003c\/script\u003e","brand":"UGREEN","offers":[{"title":"Default Title","offer_id":44345806684259,"sku":"30445","price":2259.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/3780\/4899\/files\/30445_01.webp?v=1783659565","url":"https:\/\/ugreenindia.com\/products\/ugreen-30445-bluetooth-5-3-audio-receiver-aux-rca","provider":"Ugreen India","version":"1.0","type":"link"}