Motion Sensor Doorbell: It will send out the sound automatically when someboday close it around 3 meters.sound message can b

Motion Sensor Doorbell:

This is a motion sensing box, when somebody go across tothe sound box around 3 meters,

the sound can be played, any or your own sound and logo can be customized.

You can put the sound box near to your products for a good promotion purpose.

Size:6x9.2x2.1cm

If you have any questions else, please contact me!

Motion Sensor Doorbell