Function: 20 Frequency Vibration Color: Rose/Black/Purple Size: 16.5 * 3.8 cm/6.5" * 1.5" Net Weight: 135 g/0.3 lb/4.8 oz Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: Waterproof Package Size: 19*5.7*4.8 CM