Function: 3 Speeds 21 Frequency Vibration Color: Pink/Blue/Black/Green Size: 28.4 * 12.4 * 3.9 cm/11.1  * 4.8 * 1.5 inch Net Weight: 335 g/0.7 lb/11.8 oz Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: Waterproof