Install steps:
1. Remove the protecting paper piece before use
2. Paste the sub-facility on the door frame
3. Paste the main-facility on the door inside
4. The distance between the sub-facility and the main-facility should be less 1.5CM
5. In order to firm the facility, please fix the bolt well
6. Install the batteries, turn on the switch, adjust the suitable volume
Package:
Carton size: 53*37*26cm
50pcs/carton, G. W: 12kg/carton