360-degree float shaving Acceleration gear, deep cleansing 7200m / minute cutting speed IPX4 waterproof Built-in lithium battery, charge for 2 hours and run for 60 minutes Material: steel Specification: Model: T8 Color: black, bronze Weight: 94g Function: shaving Power supply: polymer battery Battery life: 90 minutes Voltage: 3.7V-4.2V Power: 5W Size: 8.5*2.7CM