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 will automatically play music. If it is not exposed to light in the middle, it will 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 may vary, which does not affect the use Package Contents: 1 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.