Function: 10 Frequency Vibration Color: Black/Purple/Dark Purple/Rose Size: 20 * 4.3 cm/7.9" * 1.7" Net Weight: 121 g/0.27 lb/4.3 oz Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: Waterproof Package Size: 23*6.5*5 CM