Function: 16 Frequency Vibration,3 Mode Rotation Color: Black Size: 11.4 * 3 cm/4.4  * 1.2 inch Insert Length: 8.4 cm/3.3 inch Net Weight: 125 g/0.27 lb/4.4 oz Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: Waterproof/Rotation/Electric...