Two USB Car Charger: Fm transmitter has two USB ports, one designed for charging and other one for reading USB files; With 2 car charger function itself,5V-2100M(5V-2.1A) output, can charge your mobile phone or other portable device.
Stylish Design: Large LED display screen not only can show current voltage of the storage battery of your car but also the name of songs or caller ID; Automatically pairing once turn it on.
AUX In and Out: supports AUX output and input,also support full frequency point to launch, range from 87.5Mhz to 108.0Mhz;
Widely Compatibility: Work with iPhone (max speed), iPad (max speed), iPod, HTC, Galaxy, Blackberry, MP3 Players, Digital Cameras, PDAs, Mobile Phones;
WHAT’S MORE – Supports 4 modes. AUX play/Bluetooth A2DP play/TF card play/U flash disk play, includes MP3/WMA/WAV/FLAC format, extremely high-performance built-in microphone which can offer your clear talking and wonderful music.Noise cancellation by CVC,wind noise suppression.Full dupiex technology.

Specification:
Bluetooth: 
Bluetooth Version: V3.0+EDR
Frequency: 20 h- 20KHZ
Sensitivity: -41db+ / 3db 360
Voltage: 5 V + / – 0.5
Working Current: 45mA (Max) 
Stand-by Current: 25mA (Max) 
Frequency: 2.402 ~ 2.480 ghz
Effective Range: 5meters
Sensitivity: -92 dBm
RF Output: 4 dBm

Frequencies: 
FM: 87.5MHZ-108.0MHZ
Transmitted Power: 87 dBuv / 107 dBuv
Effective Range: 5 Meters

Package Included
1* Bluetooth FM transmitter
1* Aux cable
1* User manual