1. It is very suitable for DIY enthusiasts and can be used as a DIY audio music greeting card module 2. Light sensor control, When light is detected, the sound module automatically . If it is not exposed to light in the middle, it stop playing.The volume is also adjustable. 3. Module memory capacity of 8M, no loop playback, with volume adjustment, and built-in Micro-USB interface 4. The product is suitable for toys, commemorative albums, photo albums, greeting cards, etc 5. Stable product performance and long service life Colour:Silver & Green Material:plastic Due to different product batches, the appearance , which does not affect the use Package Contents: 2 x DIY Light Sensor Sound Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.