{"product_id":"fm-radio-diy-electronics-kit-bluetooth-5-0-speaker-with-voice-activated-level-indicator-diy-electronic-kit-dc5v-bluetooth-speak","title":"FM Radio DIY Electronics Kit Bluetooth 5.0 Speaker with Voice-activated Level Indicator DIY Electronic Kit DC5V Bluetooth Speak","description":"\u003cdiv id=\"specification\"\u003e\u003c\/div\u003e\u003cdiv id=\"specification_end\"\u003e\u003c\/div\u003e\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003ca href=\"http:\/\/myosuploads3.banggood.com\/products\/20260514\/20260514023200BluetoothSpeakerInstruction.pdf\" target=\"_blank\" style=\"background-color: rgb(255, 231, 206);\"\u003e\u003cfont color=\"#ff0000\"\u003e\u0026gt;\u0026gt;\u0026gt;Manual: Click here to open\u0026lt;\u0026lt;\u0026lt;\u003c\/font\u003e\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e1. 4.8~6.0G broadband FM audio\/video synchronized reception, ensure HD smooth transmission\u003cbr\u003e2. Small size SMD package (28×23×3 mm), easy to integrate various devices\u003cbr\u003e3. Low power consumption design (5V 170mA), saving energy and prolonging usage time\u003cbr\u003e4. High reception sensitivity (-90dBm), signal stability, strong anti-interference\u003cbr\u003e5. Built-in frequency phase-locked loop, providing high stability and accurate reception\u003cbr\u003e\u003cbr\u003e\u003cb\u003eParameter:\u003c\/b\u003e\u003cbr\u003eMaterial: Metal+Acrylic\u003cbr\u003eProduct: Bluetooth 5.0 speaker with voice-controlled level indicator\u003cbr\u003eModel: JQ-D017BT\u003cbr\u003eWorking voltage: DC5V (can be powered by 5V1.5-2.1A USB charger)\u003cbr\u003eWorking current: recommended. 2A or above\u003cbr\u003eMain functions: Bluetooth 5.0 reception, USB, S\/D card, FM radio playback\u003cbr\u003eVoice call, AUX input\u003cbr\u003eOutput power: 2.0 dual-channel 3WX2\u003cbr\u003eMusic metronome circuit board size: 100X30MM\u003cbr\u003eAcrylic shell size: 148X68X81MM\u003cbr\u003eShell Color: Black\/ Transparent(Optional)\u003c\/p\u003e\u003cp\u003e\u003cfont color=\"#ff0000\"\u003eNote: This is a unassembled kit and requires self-assembly and soldering.\u003c\/font\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage includes:\u003c\/b\u003e\u003cbr\u003e1 x Bluetooth speaker kit\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eBluetooth name: JQ-BT, open the cell phone or tablet Bluetooth search and pairing connection can be. fm radio need to add welding antenna, you can find a suitable wire welded to the antenna welding point, disk in the chassis in order to increase the radio sensitivity.\u003cbr\u003eLevel indicator consists of four LM358 main control chip 12 LEDs, adjustable sensitivity, need to weld, welded from the bluetooth board to take 5V power supply can work, when there is a music signal LED lights from the center to the two sides of the blinking.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWelding methods and precautions:\u003c\/b\u003e\u003cbr\u003eThe acrylic shell has a protective film, tear off the protective film before assembling, and figure out the position of each board, and then install the speakers, circuit board, and finally assembling.\u003cbr\u003eAdjustable resistors for adjusting sensitivity are welded on the back of the PCB and exposed after mounting the shell, so that it is easy to adjust the sensitivity at any time.\u003cbr\u003eComponents should be welded from short to high, pay attention to distinguish between positive and negative poles. Electrolytic capacitors, light-emitting diode polarity: long foot is positive, short foot is negative.\u003cbr\u003eWelding is completed to fully check whether there is a false weld or short circuit, to confirm that there is no error and then power on the test.\u003cbr\u003eThe positive and negative poles of the power supply must not be reversed, otherwise the chip will be burned when the power is turned on.\u003c\/p\u003e","brand":"LinkMejor","offers":[{"title":"Black","offer_id":49121339867361,"sku":"BG-2036263-BLACK","price":14.59,"currency_code":"HKD","in_stock":true},{"title":"Transparent","offer_id":49121339900129,"sku":"BG-2036263-TRANSP","price":14.59,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/9317\/8849\/files\/b07db0b4-1651-4557-baa7-f73f1c39b4fc.jpg?v=1789397363","url":"https:\/\/ontproduct.com\/products\/fm-radio-diy-electronics-kit-bluetooth-5-0-speaker-with-voice-activated-level-indicator-diy-electronic-kit-dc5v-bluetooth-speak","provider":"IvySource","version":"1.0","type":"link"}