Recharge Charging time: 1.5 hours battery Rated voltage: 7V DC Type: High-energy lithium battery Capacity: 1400mAh Working hours: 2-3 hours Fascial ball Vibration speed: 1 gear-2200RPM 2 gears-3200RPM 3 gears-4200RPM Gear adjustment: every time the button is clicked, one gear is added Shut down: long press for 2-3 seconds
