1. Material: ABS+silicone 2. Battery capacity: 220mAh lithium battery 3. Battery life: 8 hours 4. Rated voltage: 3.7V 5. Charging voltage: DC 5V 6. Charging current: 500mAh 7. Power: 1W 8. Twin-turbo design, unobstructed breathing 9. Soft silicone, more comfortable to wear 10. USB interface, convenient and fast charging 11. Three-speed wind speed adjustment, short press to adjust wind speed, long press to shut down 12. The anti-snoring device can keep the respiratory tract moisturized, reduce pharyngeal muscle congestion, expand the breathing channel, restore the elasticity of the pharyngeal muscles so as to breathe smoothly