The sound module with photosensitive switch is used in gift boxes. The module has its own battery power supply. The sound is played when light enters the sensor and is turned off when the sensor is in the dark again. That is, when the module is put into a box that is impervious to light, the sound will sound when the box is opened and turned off when the box is closed.

The sound is uploaded to the module during the production process.
 

Minimum order quantity: 200 pcs.