Function: 10 Frequency Vibration Color: Black/White Size: 21 * 7 cm/8.2  * 2.7 inch Insert: 13 cm/5.1 inch Net Weight: 390 g/0.86 lb/13.7 oz Power: Lithium battery(Black)/AAA(White) Material: ABS + Silicone Package: Color Box Further: Waterproof/Voice Package Size: 21.5*8*8...