Function: 9 Frequency Vibration Color: Black Size:  10.1 * 3.3 cm/4" * 1.3" 11.4 * 3.6 cm/4.5" * 1.4" 12.7 * 5.5 cm/5" * 2.2" Net Weight: 300 g/0.66 lb/10.6 oz Power: Lithium battery/3.7V/140mAh Material: ABS + Silicone Package: Color...