1. Semiconductor refrigeration technology, all-round surrounding wind.
2. Comfortable and adjustable design, efficient and long-lasting battery life.
3. Semi-closed opening, dustproof and sweatproof, no dust accumulation.
4. Silicone pad, skin-friendly and comfortable, safe to wear.
5. Type-C fast charging, fully charged in 3 hours.
6. Parameters:
- Material: ABS+aluminum alloy+silicone
- Battery capacity: 4000mAh
- Input: 5V 2A
- Interface: Type-C
- Dimensions: 297x157x180mm
- Weight: 400g