Specification :
Doorbell model: W899
Receiving distance: 350M(open area)
Volume: 6 levels(can adjust to mute)
Ringtones: 48 pcs
Transmitter size: 73x41x19mm
Receiver size: 92x54x32mm
The transmitter use a 12V23A alkaline bettery(not included).
Package includeds :
1 x Doorbell button
1 x Doorbell receiver
1 x Double sided tape
1 x Screws Set
