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Sound music Apartment, house, office welcome Islamic Muslim
Doorbell with battery
Use methods:
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: