The SC5274 PureRadiance Facial cleansing system uses Sonic Technology with Advanced Dual Motion to provide gentle deep cleansing to remove makeup and dirt for healthy, soft and radiant skin. Works for all skin types. This cleanser has an intelligent skin zone timer with auto shut-off and multiple speed settings to customize your cleansing routine. It is water resistant and can be used with your favourite cleansers in the shower or at the sink. The SC5274 has a lithium ion battery which provides 30 uses with one charge. Universal voltage.