{"product_id":"dc-5v-3-7v-tws-stereo-bluetooth-power-amplifier-board-2-10w-dual-channel-adjustable-and-rechargeable-power-amplifier-board","title":"DC 5V\/3.7V TWS Stereo Bluetooth Power Amplifier Board, 2×10W Dual-Channel Adjustable and Rechargeable Power Amplifier Board","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eAudio Input\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eWireless Bluetooth \/ Wired sound card\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBluetooth Version\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5.1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGaqqee\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLess than 35MA\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eNumber of Channels\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e2-channel\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDetails page\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e2*10W\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTQFP\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eProtection mechanisms\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eOver-temperature and over-current protection\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eQuantity\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSpeakers\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCompatible with 4Ω speakers (2Ω speakers cannot be used)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e3.7V battery\/DC5V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eProduct Features:\u003c\/p\u003e\u003cp\u003e1. Stereo dual-channel, dual-mode input via Bluetooth sound card\u003c\/p\u003e\u003cp\u003e2. Bluetooth 5.1 wireless connection, ensuring stable transmission of stereo audio signals\u003c\/p\u003e\u003cp\u003e3. Supports 2×10W output, providing powerful drive for 4Ω speakers\u003c\/p\u003e\u003cp\u003e4. Supports dual power supply options: 3.7V battery and DC 5V, offering flexible adaptation to various scenarios\u003c\/p\u003e\u003cp\u003e5. Suitable for portable speakers and DIY Bluetooth audio projects\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eChip Type: Stereo\u003c\/p\u003e\u003cp\u003eNumber of Channels: 2-channel\u003c\/p\u003e\u003cp\u003eAudio Input: Wireless Bluetooth \/ Wired sound card\u003c\/p\u003e\u003cp\u003ePower Supply: 3.7V battery \/ DC 5V (Note: Voltage must not exceed 5V)\u003c\/p\u003e\u003cp\u003eSpeakers: Compatible with 4Ω speakers (2Ω speakers cannot be used)\u003c\/p\u003e\u003cp\u003eBluetooth Version: 5.1\u003c\/p\u003e\u003cp\u003eOutput Power: 2 × 10W (peak distortion power up to 2 × 10.6W)\u003c\/p\u003e\u003cp\u003eOutput Impedance: 4Ω\u003c\/p\u003e\u003cp\u003ePower Consumption (On\/Standby): Less than 35mA\u003c\/p\u003e\u003cp\u003ePower Consumption (Off\/Standby): Less than 25µA\u003c\/p\u003e\u003cp\u003eCharging Current: 0.8 ± 0.1A\u003c\/p\u003e\u003cp\u003eTemperature Rise During Charging: \u0026lt;30°C (Rise above ambient temperature)\u003c\/p\u003e\u003cp\u003e3,000 mAh battery life reference (with dual 4Ω speakers and default EQ): at half volume, standard tracks \u0026gt; 20 hours; at maximum volume, standard tracks \u0026gt; 8 hours\u003c\/p\u003e\u003cp\u003eMobile phone Bluetooth connection range: ≥ 10 metres in a non-metallic, enclosed environment\u003c\/p\u003e\u003cp\u003eCodec: Basic SBC\u003c\/p\u003e\u003cp\u003eProtection mechanisms: Over-temperature and over-current protection\u003c\/p\u003e\u003cp\u003eMainboard dimensions: 39 × 46 mm; thickness: 12 mm\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProduct Notes:\u003c\/p\u003e\u003cp\u003eThe use of hot-melt adhesive is strictly prohibited.\u003c\/p\u003e\u003cp\u003eFor the socket-mounted charging indicator light: if the light is not red, the red LED on the mainboard must be removed for it to illuminate. Furthermore, the charging indicator light will not switch off once the battery is fully charged.\u003c\/p\u003e\u003cp\u003eIf you wish for the light to switch off upon full charge, you must connect a wire across the two terminals of the red LED on the mainboard.\u003c\/p\u003e\u003cp\u003eYou must use a 3.7V battery with an overcurrent rating of 5A or higher and equipped with a protection circuit. Otherwise, the battery will trigger protection at maximum volume.\u003c\/p\u003e\u003cp\u003eWhen used without a battery and powered via a 5V 3A mains adapter, the volume must not exceed 50 per cent, otherwise the device will reboot.\u003c\/p\u003e\u003cp\u003eThe amplifier’s signal-to-noise ratio is 67; this means that at very low volumes, white noise may be audible when your ear is approximately 10 centimetres from the speaker. If this is a concern, please do not purchase.\u003c\/p\u003e\u003cp\u003eThe sound tuning software does not support Windows 7 or earlier operating systems.\u003c\/p\u003e\u003cp\u003eSupports expansion with up to 30 x 5V RGB LEDs.\u003c\/p\u003e\u003cp\u003eHidden volume up\/down solder pads.\u003c\/p\u003e\u003cp\u003eCapable of charging the battery.\u003c\/p\u003e\u003cp\u003ePowered by a single power battery\u003c\/p\u003e\u003cp\u003eSupports EQ adjustment and saving via computer\u003c\/p\u003e\u003cp\u003e10-band EQ gain with DRC dynamic compression\u003c\/p\u003e\u003cp\u003ePower button (single press to turn on, long press to turn off, triple press for TWS pairing, quadruple press to clear TWS pairing)\u003c\/p\u003e\u003cp\u003eM button (single press to switch lighting modes, double press for next track, triple press for previous track, long press to switch between sound card and Bluetooth)\u003c\/p\u003e\u003cp\u003eIntegrally moulded inductor with black-gold capacitors\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eNote: Regarding background noise – please do not purchase if this is a concern\u003c\/p\u003e\u003cp\u003e① High-sensitivity speaker\u003c\/p\u003e\u003cp\u003e② In a quiet environment, at a distance of less than 30 cm when held vertically\u003c\/p\u003e\u003cp\u003e③ A faint hissing white noise may be audible at minimum volume\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePower supply requirements:\u003c\/p\u003e\u003cp\u003e1. Battery input: 3.3–4.2 V. The current from the battery connector to the main board must meet the following requirements: continuous discharge of 5 A, peak discharge of 8 A. For example, a 2000 mAh 5C battery or a 3000 mAh 3C battery.\u003c\/p\u003e\u003cp\u003eBattery protection board: Must have at least four 8-pin MOSFETs.\u003c\/p\u003e\u003cp\u003e2. Connect the adjustable power supply to the battery socket; the voltage must be between 3.3 V and 4.2 V, and the current must exceed 14 A to meet the peak load requirements.\u003c\/p\u003e\u003cp\u003e3. The device will not power on without a battery.\u003c\/p\u003e\u003cp\u003eBattery cable requirements: The cable must be thicker than No. 22 gauge, and the length must be less than 200 mm (\u0026lt;20 cm).\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFrequently Asked Questions:\u003c\/p\u003e\u003cp\u003e① Causes of loud noises, reboots, stuttering or shutdowns: Insufficient power supply — please refer to the power supply requirements and verify the parameters of the battery, protection board and battery cable. (Note: Currently, in 1 in 3,000 cases, high speaker volume causes the mainboard to reboot; this is due to very fine copper wire costing just over one yuan.) Apart from this, there are no other known causes.\u003c\/p\u003e\u003cp\u003e② How to pair? — Disconnect your mobile phone, switch on the speaker, and quickly press the power button three times to initiate pairing — wait 10 seconds and rescan for a Bluetooth connection. The left channel initiates pairing. Pressing the button four times cancels pairing.\u003c\/p\u003e\u003cp\u003e③ The sound seems very quiet —— This is extremely rare. The mobile phone’s Bluetooth volume synchronisation function must be enabled — Settings \u0026gt; Bluetooth \u0026gt; Advanced \u0026gt; tick ‘Volume\u003c\/p\u003e\u003cp\u003eSynchronisation’ or ‘Absolute Volume’, or connect a tactile switch to the volume pad reserved on the main board for control.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProduct list:\u003c\/p\u003e\u003cp\u003e1x module\u003c\/p\u003e\u003cp\u003e2x speaker wires (optional)\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sdbf26b04f658497db7188045a77ad7b3N.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S17e061c81a194bfea6bcb10ba1b24900p.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sfbe3063461584c31bb199b72751697ffj.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sc2a8dffad7a64d2cb24b74a2e5f25c36c.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S52da4a71d1fe49e688bd09881aa1c4fcQ.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S39353bb5777b466eb75b117b4f0b4ff1r.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sd115508d5c4b4c17b39b5b6a09a80813q.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S372f63d9725e4c47842b7dbfd1b422a0n.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sd828de61753c473990c7db019b463ea5S.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sd622afa7578b4ddfa3280c0c37793338r.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S4a67bf9c3ce8450495179f6e20b33bddz.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S297f22b4b9a1446da354659034cc350eQ.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"Without cable","offer_id":55506297848107,"sku":"14:1202#Without cable","price":21.52,"currency_code":"USD","in_stock":true},{"title":"With cable","offer_id":55506297880875,"sku":"14:350852#With cable","price":22.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/Sdbf26b04f658497db7188045a77ad7b3N_27cd3bb3-280a-432f-9bcc-78f1f133e89a.webp?v=1788929696","url":"https:\/\/yoeruyo.com\/products\/dc-5v-3-7v-tws-stereo-bluetooth-power-amplifier-board-2-10w-dual-channel-adjustable-and-rechargeable-power-amplifier-board","provider":"Yoeruyo","version":"1.0","type":"link"}