1. Suitable for DIY enthusiasts, can be used as a DIY audio music greeting card module 2. Light sensor control: when light is detected, the sound module automatically plays; if not exposed to light, it stops playing. Volume is adjustable 3. Module memory capacity of 8M, non-loop playback, with volume adjustment, and built-in Micro-USB interface 4. Suitable for toys, commemorative albums, photo albums, greeting cards, etc 5. Stable performance and long service life Color: Silver & Green Material: Plastic Due to different product batches, appearance may vary slightly, which does not affect usage 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 to differ slightly from the real thing. Measurement allowed error is +/- 1-3 cm