Waterproof design can be cleaned directly in water, wet or dry shaving, you can use with shaving foam voltage 220V-240V, rechargeable battery design, LED light reminiscent of 3/5/7mm comb , charging time 5-8 hours, normal working time 45 -60 minutes, with automatic sharpening technology, the blade becomes sharper, 100% original, 100% new, 100% real picture. The factory engineer recommends wet shaving because all new electric shavers have mild skin irritation. However, this is not a quality problem. Please stick with it for 2-3 months and your skin will get used to it.