Use the BT67 Car Handsfree Kit with Remote Control Bluetooth MP3 Player SD USB FM Transmitter to make secure calls on the go Besides hands-free calling, it also perfectly integrates FM transmitter, Bluetooth, USB charger and MP3 player. In this way, you can do more with your car audio system. The built-in microphone lets you talk to callers while driving without having to pick up the phone. This car kit can be plugged directly into the cigarette lighter for power. It comes with a remote for added convenience. Don't hesitate to get one feature: 1. Wirelessly transfer the call from the Bluetooth phone to the car FM audio system. 2. Built-in FM transmitter, full frequency: 87.5-108.0MHZ. 3. Built-in microphone and automatic caller number system4. Support U disk and SD card, A2DP function5. With a 3.5mm line input jack, it supports external audio equipment. 6. Automatically switch from music playback to hands-free mode when answering a call7. Support 4 cycle modes: repeat all, random, repeat one, folder, 8. 5 Equalizers to choose from: Natural, Rock, Pop, Classic, Jazz9, USB charging port, can charge iPod/iPhone, iPad and other mobile devices. (Output: DC 5V/2.1A). 10. Support car cigarette lighter 12-24V voltage. 11. Sturdy and elegant design, LCD display, only supports digital display. 12. Flexible metal hose for any type of car. 13. With infrared remote control, easy to operate Specification: 1. Bluetooth IC: CSR BC8635 Stereo (CSR 4.0) 2. Frequency: 87.5-108.0 MHz3. Frequency stability: 10ppmI (0~ 45) 4. Output frequency: 20Hz-20KHz5. Power supply voltage: 12-24V6. USB charger output: 5V/2. 1A7. Music format: MP3 format8. USB (maximum supported): 32GB9. SD (maximum supported): 32GB10. Transmission distance: