This ultrasonic face cleanser is perfect for anyone looking to improve their skincare routine. Use it daily in the shower or at your sink. It's suitable for all skin types. The main machine is lightweight and easy to hold. The silicone brush head is gentle on the skin. The input voltage is 5 V, rated voltage is 3.7 V, input power is 5 W, battery capacity is 2,000 mAh, with 3 levels of strength. Charging time is approx. 2.5 hrs and use time is approx. 1 hr. Comes with 1 main machine, 1 silicone brush head, 1 rack, 1 USB cable, and 1 storage bag.