Bluetooth Car Kit Mp3 Player Handsfree FM Wireless Transmitter Remote Control Dual Usb Charger

LED Display the FM frequency/track 
Built-in FM transmitter, full frequency: 87.5-108.0 MHz 
Bluetooth hands-free kit, with built-in microphone 
Excellent voice quality, use the DSP (digital signal process) technology to echo cancellation 
Switch to hands-free mode automatically from music playing status when receives an incoming call 
USB charging ports for charging iPod/iPhone, Samsung, iPad, Nokia and other mobile devices (Output 5V/3.1A) 

Specification: 

Effective distance 8-10 m
Car charger input voltage 12-24 volt
Output voltage 5 volt
Bluetooth Version 3.0
Control Hands Yes