🇺🇸【Dual USB Car Charger】 2 USB charging ports to charge most USB devices. Input 12V / 24V, 1a port with USB reading and charging function; smart 3. 1 A charging port that can intelligently identify Android or iOS devices and charging. | 🇺🇸【More Compatibility】 Wireless Bluetooth FM transmitter adapter for car radio, transmission of calls / MP3 music / cell phone voices to the car speaker. Compatible with iPad, iPhone, Samsung, Google, LG, HTC and Bluetooth devices. | 🇺🇸【Hands-free Function】Built-in microphone, automatically switches from music playback status to hands-free mode when receiving calls. Reply / decline / abandon / call back all in one button. | 🇺🇸【Car Battery Voltage Function】Display voltage for 3 seconds when the plug is inserted into the car socket. Always keep the battery in good health. Then it switches to automatic playback mode. | 🇺🇸【Music Playback】Support for bluetooth / USB hard drive / TF card / MP3 / WMA player. With anti-interference performance and CVC technology. Listen to music while charging. Automatically establish a saved connection when switched on. | 🇺🇸【How to Use】1. Refer to the same frequency of Auto FM and the article; 2. Turn on your phone's bluetooth, find the HY82 and connect to it. Then you can play music via bluetooth. | 🇺🇸【Package includes】1 PC | 🇺🇸【24 Hours Customer Service】Any problems about our item, please send email to us, it's our pleasure to help you solve it efficiently.