Function: 20 Frequency 8 Speeds VibrationColor: Rose/Purple/Black/Blue/PinkSize: 20.3 * 4.4 cm/8" * 1.7"Net Weight: 151 g/0.33 lb/5.3 ozPower: Lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: Waterproof, Magnetic attraction charge