RicoRich Bluetooth FM Transmitter and Reciever,Wireless Car Radio Adapter Handsfree Magnetic Mount Music Adapter or Calling Support USB Charger and TF Card FM Transmitter Bluetooth hands-Free call with built in microphone for answering and receiving calls and streaming music with any Bluetooth-enabled device,iphone,ipad,Samsung, HTC, LG, Sony, Motorola, Nokia, ASUS, Microsoft & More Smartphones, Tablets etc This fm bluetooth transmitter and receiver can automatically catch your voice around,makes you do not need to talk close to the mouth,which is more convenience during driving With TF card slot and USB port--Suport 5V/2A output from the USB ports, never worry about your cellphones power off also support play music from TF card 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 Please aviod using the broadcasting station frequency that is with strong signal or turn to empty channel to get better quality sound