Wireless Hand Free Car Kits & MP3 Transmitters

Features:
1) Universal wireless hand free car kit and MP3 transmitter
2) Auto-switch between MP3 and phone call.
3) Two choices for communication by wireless earpieces or by car radios and automatic switch without noise between wireless earpieces and car radios
4) Universal type clip compatible with any phones, any cars and any radios
5) No extra earpiece needed
6) Microphone cord for clearer communication with optional clip for sunroof in car
7) Frequency: 108MHz for wireless earpiece, 88.7/106.5MHz for car radio, any other FM frequency you may prefer with quantities over than 5Kpcs
8) Voltage: DC 9 ? 24V
9) Working current: 80mA
10) Distortion: ≤5%.
11) Receiving sensitivity: ≤15dB.
12) Earpiece output: 0.6mW, 20Hz - 20KHz
13) Working ranges: 3 - 4m
14) Charging time: 2.5 - 3h
15) Talking time: 120m
16) Stand-by time: 8h
17) Car cigarette lighter with plug-in saver / built-in charger
18) With universal phone holder for easy DIY installation