Q How to get clear sound when using FM wireless transmitter?
A The frequency of the car dvd ranges from 87.5-89.7, with 12 channels. You can adjust the frequency of your car radio to be the same, or adjust the directions of the FM antenna which is at the rear of the car dvd player.
Q Dose the camera support PAL system?
A Yes, it supports both PAL and NTSC
Q What's the detection distance of the truck parking sensor
A It is up to 5 meters. Normally we make it 3 meters
Q What languages does the driver fatigue warning device supports
A It supports English, Spanish, Portuguese, Russian, Japanese etc
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