Coupon price: $37.89
A1 Universal 2.0 inch GPS HUD Head Up Display with Overspeed Alarm Compass Altitude - BLACK
Product's Link: http://goo.gl/u8b51E
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Features:
Overspeed alarm, help you avoid the accident
Compass, eight directions, avoid driving wrong way
Altitude, know the the road condition well
Real time show, know the times accurately
Parameters:
DC 8 - 18V working voltage
40mA working current
±1 degree compass precision
0 - 400KM speed range
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