1. Material: ABS+PC 2. Interface: USB 3. Rotatable and dimmable 4. Free 6 sets of transparencies 5. Switch type: button type 6. Power supply: 1200mAh battery (except USB-in version) 7. Function: projection lamp, night light, music box 8. Voltage: 36V 9. Light source power: 1W 10. Type of light source: led 11. Average service life: 10000h 12. Unit weight: 0.45kg 13. Size: 131x131x136mm 14. Features: - Plug-in version: USB plug-in use (no battery), night light + projection + rotation + 6 patterns + 3 light colors, no music - Charging version: USB charging (built-in lithium battery), night light + projection + rotation + 6 patterns + 3 light colors, no music - Rechargeable music box: USB charging (built-in lithium battery), night light + projection + rotation + 6 patterns + 3 light colors, with a metal rotating clockwork music box, one piece of pure music (stop spinning, stop music) - Bluetooth version: USB charging (built-in lithium battery), night light + projection + rotation + 6 patterns + 3 light colors, with Bluetooth function, can be connected to mobile phone Bluetooth to play music Packing list: - Light x 1 - Films x 6 - USB cable x 1 - Manual x 1