TIPS:
1. Make sure the battery is full charged .
2. The USB cable cannot be used for charging, it is only used to
transfer pictures and videos.
3. If at day, make sure the IR is off (if IR is on,screen is black
and white or the screen is colored)
4. IR level can up to 7 levels when the battery power is full.
5. To avoid damaging the electronics, do not use any cleaning fluid.
6. Don't get too close to the observation object. Recommend that the
observation distance is more than 3m.
7. Adjust the focus by slowing turning the Focus wheel, until the
screen is clear.
The related video has been uploaded.