SolidPin Newest Wireless In-Car Bluetooth FM Transmitter Radio Adapter Car Kit with Hands-free Calls & Dual USB Port Car Charger for iPhone, iPad, Samsung, Android Tablet PC This multifunctional Car kit Bluetooth FM transmitter allows stereo music playing, hands-free calling, and devices charging. Dual USB ports for your devices charging, built-in microphone and FM transmitter with full frequency: 87.5-108MHZ. Special extended cigar lighter port for other car kit device??s charging and LED display window to show frequency. With call echo cancellation and noise reduction (CVC) technology, automatic memory function of power failure. Compatible with smartphones, iPad, iPod and other mobile devices.