Bluetooth4.0 for Car Hands-free MP3 Player FM Transmitter Modulator with USB Charging for iPhone Plus 6S 6 Google Nexus Samsung Galaxy and HTC More Mobile phone can connect to the device automatically open, support FM frequency launch all functions, there are 208 frequency points and supports external TF card, you can play music files in MP3 / WMA/WAV format/FLA, high fidelity music quality Support bluetooth 4.0/3.0/2.0 device to connect, support the voice prompt operation, support to the telegraph, configuration utility to rotate buttons, answering phone calls/hang up/redial/play/pause and power with memory function Support for android and IOS smartphones and other USB charging equipment, maximum output current of 2.5 A in, intelligent matching charging current Built-in powerful noise cancellation and noise suppression (CVC) technology, call voice more clearly, present the perfect quality Freedom to switch calls and music playback mode, adjust the Angle of comfortable 180  freedom, suitable for all kinds of car use