{"product_id":"2-in-1-fiber-optic-bluetooth-5-0-audio-receiver-transmitter-black","title":"Bluetooth 5.0 Optical Audio Transmitter Receiver 2in1 Black","description":"\u003cdiv\u003e\n\u003cp\u003eThe bti-029 is a compact 2-in-1 Bluetooth 5.0 optical audio transmitter and receiver that switches between TX (transmit) and RX (receive) via a dial-mode switch, supporting both AUX and SPDIF (optical) connections.\u003c\/p\u003e \u003cp\u003eIn TX mode the device can connect to two stereo Bluetooth speakers or headsets simultaneously so both output sound; in RX mode it can pair with two phones but only one source plays at a time (the device that starts playback first). The adapter uses a CSR BC8670 chip and Bluetooth v5.0 with Class II transmit power for up to approximately 10 meters depending on connected devices.\u003c\/p\u003e \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eBluetooth chip: CSR BC8670\u003c\/li\u003e \u003cli\u003eBluetooth version: 5.0\u003c\/li\u003e \u003cli\u003eFrequency range: 2.402–2.480 GHz\u003c\/li\u003e \u003cli\u003ePairing\/security keys: 0000, 1111, 1234, 8888\u003c\/li\u003e \u003cli\u003eBattery: 350 mAh rechargeable Li‑polymer\u003c\/li\u003e \u003cli\u003eBattery life: ~15 hours (AUX RX\/TX); ~12 hours (SPDIF RX\/TX)\u003c\/li\u003e \u003cli\u003eCharging: 5V DC ≥ 300 mA, charging time ≈ 2 hours\u003c\/li\u003e \u003cli\u003eOperating temperature: -10 to 55 °C\u003c\/li\u003e \u003cli\u003eNet weight: approx. 38.6 g\u003c\/li\u003e \u003cli\u003eSize: 60 × 60 × 18.4 mm\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSize Guide\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eFootprint: 60 mm square; thickness 18.4 mm — fits on a media shelf or portable audio setup\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIntended use: switch between transmitting and receiving digital or analog audio for Bluetooth speakers, headsets, phones, or SPDIF-capable equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Syndmart","offers":[{"title":"black","offer_id":48583729021146,"sku":"SYA00283101","price":46.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/7062\/9594\/files\/SYA00283101.jpg?v=1789122478","url":"https:\/\/syndmart.com\/products\/2-in-1-fiber-optic-bluetooth-5-0-audio-receiver-transmitter-black","provider":"Syndmart","version":"1.0","type":"link"}