no more selling Multifunctional Design: Hands-free calls, enjoy clear music, GPS voice navigation, charge your phone all in Smart Transmitter Detachable Style:: The control tub is magnetically docked with the DC neck, easy to install and remove, you can take it out based on your needs. With the built-in 200mAh Li-battery, the Bluetooth FM transmitter control tub can work for 2.5 hours after fully charged Wide Competibility: The iClever FM transmitter supports different car models with or without AUX port, competible with most of the smart device on the market, such as iPhone, Tablet, Android Smartphones Hi-Fi Sound: Built-in CSR's own echo cancellation and noise suppression DSP software technology, this transmitter offers superb audio clarity with a superior dynamic, allows you enjoy your favorite music User-friendly Deasign: With a flexible neck, the wireless transmitter fits any cars nicely, perfect device for your car