Product name: usb bluetooth FM transmitterProduct model: FM01Working voltage: 5VEffective probability: within 10 metersDefault frequency: 95.0MHZSignal to noise ratio: greater or equal to 95dbAnswer the call: supportAutomatic return: supportPower supply mode: usb power supply (5V)This product is mainly used in in-vehicle scenarios, using the latest Bluetooth 5.0 technology and mature FM frequency modulation technology to allow car fans to easily enjoy in-vehicle wireless music.colour: blackMaterial: ABSPackage Contents:1 x FM TransmitterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.