Bluetooth FM Transmitter, GOUXIANG Car's Radio Broadcasting Music MP3 Player and Hand-Free Calling Walkie-Talkie Taxi Style with USB Charger (Black) Guarding your driving: Bluetooth FM Transmitter with detachable magnetic base can work with iPhone, Galaxy, HTC, Sony, Android, Blackberry & Windows smart phone and any other bluetooth enabled devices. Its compact design is ideal fit in any vehicle. High Quality Sound: The bluetooth hands-free car kit with call echo cancellation and noise reduction (CVC) technology provides you the best call and music quality. Build in microphone with voice detection can automatically search your voice and set free your hands. USB Charging: This bluetooth car MP3 transmitter designed with 1 port car USB charger, max 5V/2A output, can charge your phone, tablet and any other portable device. Easy to answer calls: When someone calls you, the item can automatically search your voice around,makes you do not need to talk close to the mouth,which is more convenience during driving Easy to use: bluetooth Car Kit with Charger, 1st step: synchronize channel of this prodcut and car fm radio, 2nd step: connect cellphone with this product by bluetooth,then enjoy it