1. USB rechargeable with 250mAh Li-battery, normal daily use 25days with only 5min a day. portable design for simply carrying and charging, and you don’t have to deal with battery problems. 2. 2 interchangeable heads used BPT 0.055mm ultra-soft bristles brush can effectively remove oily dirt, and facial cuticles, BPT 0.075mm ultra-soft fibers brush head with a deep cleaning for oily skin, suitable for all skin types. 3. Powerful 360-degree rotating facial brush achieves a deep cleansing effect, 4 levels of control, and 2 skincare facial brush heads and provides you with a full range of cleansing from gentle cleansing to powerful deep cleansing.