Door bell
1.when peopel pass by or close to it in 0-2meters and it will play your pre-recorded sound
2.Comply CE and RosH

door bell

1.When people close to or pass by it and your pre-recorded sound will play.

2.The size is 90mm(L)X60mm(W)x22mm(H).

3.Your custom sound with mp3 or wave file will be welcome .

4.Your OEM or ODM design also can be made.

5.With good sound quality.

6.Door bell is very suitable for your door to put.