Function: 10 Frequency Vibration Color: Black/Purple Size: 18.5 * 2.4 cm/7.1" * 1" Net Weight: 65 g/0.14 lb/2.3 oz Power: Lithium battery/250ma Material: ABS + Silicone Package: Color Box Further: Waterproof, 2 Motor Package Size: 11*11*6 CM