X5 Car Bluetooth FM Transmitter for iPhone, Samsung, Sony, MP3, Support TF Card Music Play Hands-free Answer Phone Smart Phones Charging, Random Color Delivery1. Supports Bluetooth hands-free, built in microphone, safe and convenient to answer the call. 2. Noise and wind suppression by CVC technology to create full duplex sound quality. 3. Supports A2DP function. High quality music will be played directly while the mobile phone is connected by Bluetooth. 4. Mobile phone can be connected automatically when the device turns on. 5. Supports an external TF card, can play music files in MP3WMAWAV format. 6. Integrated car charger of USB output 5V - 1000mA, is available for charging handhold devices in car.