This electric facial cleaning brush with sonic technology that allows you three types of cleaning (deep / normal / or delicate), has three differentiated areas with different size of bristles depending on the part of the face in which you use it, and it is completely waterproof (with IPX7 certificate). Xiaomi assures that with only 90 seconds of use and after the first session, you will already notice the skin of your face more radiant and with a better appearance, since its sonic vibration technology is capable of removing all the dirt, the remains of makeup, creams and even the skin's own oil. Product weight: about 67g Battery: 1.5V AAA Use power: 0.18W Working temperature: -10-40 degrees Celsius Rotation frequency: 3300-5500rpm Product size: 6.45 * 5.3 * 3.03 cm Material: silicone