1、Support for Bluetooth 0/0/0 device connection. Support operation voice prompt, support incoming call number reporter. 2、Dual USB ports design which can charge for mobile phone and other devices. Maximum output current is 5A. 3、Hands-free Bluetooth support of the phone by calling via its built-in microphone. 4、Support FM full frequency point transmission function, with a total of 208 frequency points. 5、Support memory card and USB flash drive, can play music files in MP3 / WMA format. Features: 1. Support for Bluetooth 4.0/ 3.0/ 2.0 device connection. Support operation voice prompt, support incoming call number reporter. 2. Dual USB ports design which can charge for mobile phone and other devices. Maximum output current is 2.5A. 3. Hands-free Bluetooth support of the phone by calling via its built-in microphone. 4. Support FM full frequency point transmission function, with a total of 208 frequency points. 5. Support memory card and USB flash drive, can play music files in MP3 / WMA format. 6. Compact and small size, plug and use, easy to operate and carry. Suitable for most cars. Specifications: Material: ABS Color: Black Rated Working Voltage: 12V-24V SNR: >93DB Limit Working Voltage: 9v-28v Effective Working Distance of Microphone: 0.5m USB 0utput: 5V/ 2.5A Operating Temperature: 0-50 ℃ Memory Card Playing Format: MP3/MA Distortion Degree: < 0.1% Bluetooth Version: V 4.2+EDR Frequency Response: 20HZ-15KHZ Bluetooth Transmission Distance: 10M FM Transmission Frequency: 87.5-108MHZ FM Mode: Stereo digital PLL lock frequency Size: Approx. 7.5*4*2 cm/ 2.95* 1.57* 0.79 inch Packing List: 1 * Car MP3 Player 1 * Manual 1 * Audio Cable