RCLITE Bluetooth FM Transmitter Adapter with USB Charger LED Display MP3 Player TF card slot Car Kit Hands- Free Calling Magnetic Mount Music Adapter Receiver Bluetooth hands-Free car kit with built in microphone for answering and receiving calls and streaming music with any Bluetooth-enabled Apple, Samsung, HTC, LG, Sony, Motorola, Nokia, ASUS, Microsoft & More Smartphones, Tablets, other media players, and more! FM transmitting function configurations with LED display, easy connection with the car stereo radio. Magnetic base is more easily detachable from the controller compared with sticky base. With TF card slot and USB port, it is not only can stream the music from electronics via Bluetooth, but also support play music from TF card. It is easy for you to choose music via forward and back buttons, pick up calls, re-dial and hung up. When the call is finished, it will be switched to the music play automatically. Power-off memory. Can be embedded anywhere in the dashboard microphone bracket, for the best voice pickup,it is also designed with 1 port car USB charger which can simultaneously charge for your phones,tablets and other devices in the car.