Function: 16 Frequency VibrationColor: Pink/Purple/Dark purple/BlackSize: 19.5 * 4 cm/7.7" * 1.6"Net Weight: 245 g/0.54 lb/8.64 ozPower: lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: Waterproof, Bent Silicone HeadPackage Size: 24*7*4.5 CM