Feature:
3 IN 1 Safety hammer, Bluetooth car kit FM transmitter, car charger 2.1A.
Bluetooth hands-free calling, voice broadcast. Rapid charging for mobile phones, IPAD, IPOD, MP3, PSP and so on.
Durable metal alloy, very textured and durable.

Specification:
Rated working voltage: 12V
Limit working voltage: 9-24V
USB output :5V / 2.1A
Operating temperature: 0 to 50 degrees
SNR:> 60dB
Distortion: <0.1%
Frequency response: 20Hz-15Khz
Left and right channel separation:> 60dB
Bluetooth version: Version 2.1
Bluetooth sound processing: with A2DP (Advance Audio Distribution Profile) function
Bluetooth transmission distance: 10M
Bluetooth microphone effective range: 0.5-2M
FM transmit frequency: 87.5-100Mhz
Transmit FM mode:stereo digital: PLL frequency lock