1. Intelligent constant temperature, comfortable to wear, super battery life
2. Semiconductor hot and cold dual-use, brushless cooling motor, quiet noise reduction
3. Cool in summer and warm in winter
4. Skin-friendly and soft, relax the cervical spine
5. Ergonomic design, U-shaped ring neck, comfortable fit
6. Input voltage: 5V
7. Working current: 2A
8. Rated power: 8W
9. Battery capacity: 4800mah
10. Power mode: USB
11. Noise: below 36dB
12. Material: ABS+PP+silicone+electronic components
13. Dimensions: 160x165x30mm
14. Weight: 337g