These instructions are for your safety. Please read through them thoroughly before use and retain for future reference.
- The device is not water-proof, please against any liquid so that well protect the device.
- Please keep it out of small children reach, and stock against humidity and hot temperature.
- Please remove the electronic parts from the helmet when the device would be detached.
- Please do not disassembled, amend or alter device alone, and do not throw and drop it.
- No naked flame sources, such as lighted candles, should be placed on the apparatus.
- Please make sure the charging time is about 2 hours at the same time.