User's Manual
  Maintenance 
•  If it  is not  used for  long periods  of time, please  charge the  product  with  lithium battery every  three 
months. 
•  Keep the product away from humid places to avoid affecting internal circuit.   
•  Do not put the product in places exposed to sun or with high temperature. High temperature will shorten 
service life of electronic components, damage battery and make plastic components deformed. 
•  Do not put the product in cold places to avoid damaging internal circuit board. 
•  Do not dismantle the product. Non-professional personnel may damage the product. 
•  Do not drop, strongly vibrate, strike the product with hard object to avoid damaging internal circuit. 
•  Do not use drastic chemicals or cleaner to clean the product. 
•  Do not use sharp objects to scratch product surface to avoid damaging shell and affecting facade. 





