Product Model:ZB-0229 Material: ABS Noise: 40dB Power supply mode: USB Type-C Working voltage: 3.4V Operating current: 300mA Rated voltage: 3.7V Rated power: 1W Waterproof rating: IPX7 Battery capacity: 300mah Charging time: about 2h Charging current: 200mA Packing list: main body*1 manual*1 charging cable,*1 cleaning brush*1 How to use: 1. remove the protective cover of the cutter head; 2. long press 2S power button to turn on and then short press to switch to another head work; 3. start repairing hair on all parts of the body; 4. After use, please remove the cutter head and clean up. Cleaning methods: 1. After each use, please rotate to remove the shaver to take the piece, use the brush to sweep the storage area of the hair shavings 2. Shaving head assembly can be rinsed separately, and re-installed after drying 3. Do not rinse the whole machine or soak in water"