1st Authority Flow Adapter and Player: Supports Bluetooth/USB Disk/TF Card/MP3/WMA player. With anti-muhale performance and CVC technology. Don't listen to music while charging. When it works, automatically matched matched paired paired. WMA MP3 WAV MUSIC Formats Support. Mono sound quality reduces background noise and makes calls clearer. Compatible with iPad, iPhone, Samsung Galaxy, Google, LG, HTC and Bluetooth devices. By pairing your device with the transmitter, you can flow from your music, podcast, audio book, sound navigation or flow to the car's radio. ANSWER/Reject/Handl Up/Remember. This provides search of hands during driving. The FM transmitter publishes the search sound through the automobile speakers and provides clear communication without having to keep the mobile device. Always protect the status of battery. Then it s to automatic game mode. The Bluetooth transmitter comes with a compact and portable design that allows users to easily move the donor among different tools or even use it in rental cars or vehicles.