Car MP3, Hometom USB Car Kit Charger Wireless Bluetooth Stereo MP3 Player FM Transmitter (Black)

Wirelessly transmit phone call from Bluetooth mobile phone to the car FM stereo system
With built-in microphone; Suitable for Android/iPhone/Other Smart Phone
Built-in FM transmitter, full frequency: 87.5-108MHZ
Bluetooth IC: CSR 2.1; Frequency: 87.5-108.0 MHZ; USB Input: 12-24V; USB Output: 5V/2.1A
Music Format: MP3/WMA Format; USB (Maximum support): 32GB; Transmitting Distance: >10M