Function: 9 Frequency Vibration Color: Yellow Size: 9.3 * 6.4 * 3.2 cm/3.7" * 2.5" * 1.3" Net Weight: 68.5 g/0.15 lb/2.4 oz Power: Lithium battery/3.7V/240 mAh Material: ABS + Silicone Package: Color Box Further: Waterproof Package Size: 10x10.15x4.65 cm