Power: 3W. Battery: Rechargeable lithium-ion battery. Charge: USB charging. 1.5hr charge will provide 1hr of use time. Waterproof: Able to shave on wet skin and allows you to use gel or foam. Wireless shaver: Get an electric razor. Close shave: 3D floating heads that adjust to every curve and contour of your face and neck. Wireless Electric Shaver | Living Social | Living Social