Function: can be used as door alarm bell to alarm host that someone is opening the door.
Basic introduction:
1, 16 multiplicate music
2, use 3 AAA batteries
3, easy to install.
OEM is welcome
Function: can be used as door alarm bell to alarm host that someone is opening the door.
Basic introduction:
1, 16 multiplicate music
2, use 3 AAA batteries
3, easy to install.
OEM is welcome