Bluetooth Audio Receiver<br> : This product is a wireless Bluetooth music receiver that supports optical fiber, coaxial, and AUX interfaces.<br> It is specially designed for car stereos/speakers/headphones/old amplifiers and speaker equipment with digital optical fiber/coaxial interfaces, making ordinary speakers instantly form into It becomes a Bluetooth speaker that can wirelessly mit music from your phone to audio equipment.<br> Suitable for , game consoles, CD players MP3, etc. It perfectly solves the limitations of Bluetooth-free audio devices and expands the functions of audio devices.<br> Product main parameters. Name: Three-in-one Bluetooth receiver<br> Model: B41<br> Supported equipment: one to two<br> Frequency response range: 10Hz-20kHz input<br> Signal-to-noise ratio:more than the 110dB<br> Distortion + noise:less than 0.02%<br> Bluetooth version:5.3+<br> Output impedance: 75 ohms<br> Effective distance: 10 meters<br> Support:A2DP/AVRCP<br> Interface: Optical fiber/coaxial/AUX<br> Power supply method:Type-C<br> Operating functions:<br> 1: Connect the USB cable to the 5V charger, the product automatically turn on, and the blue light flash quickly to enter the search state. Open your phone and enter Bluetooth search, find the device name "B41" and click to connect. The connection success light flashes slowly, and the product can be connected to car audio/home audio systems/wired headphones.<br> 2: After the mobile phone is successfully connected, you can wirelessly. The product can play up and down/increase and decrease the volume/play/pause. The optical fiber-coaxial AUX interface can be switched at , and the 3D button can switch between heavy and low.<br> Material: plastic<br> colour: Black<br> Package Contents:<br> 1 x Bluetooth Audio Receiv<br> Only the above package content, other products a