Function: 10 Frequency Vibration Color: Pink Size:  S: 16.2 * 1.1 cm/6.3  * 0.43 inch (42 g/0.09 lb/1.48 oz) M: 17.8 * 1.5 cm/7.0  * 0.59 inch (55 g/0.12 lb/1.94 oz) Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: Waterproof Package Size:...