1. Material:abs+acrylic
2. Input: 5V1A
3. Power: below 0.3W
4. Power supply: USB
5. Weight: about 15.8g
6. Size: about 9.38 x 1.95cm

Functional features:
1. Low power consumption, more energy efficient, mother and baby can use, safe and secure
2. USB power supply, plug and play, USB plug, compatible with a variety of adapters
3. Interactive frequency conversion, resonant ultrasonic waves, multi-angle distribution of cavity sound waves
4. PMMA light guide night light, soft sleep light, low diffusion LED light, does not disturb sleep
5. Wide coverage area, no obstruction up to 50-100 square meters, more than one room is recommended to buy multiple