Function: 10 Frequency Vibration Finger Vibrator Color: Blue Size:  13 * 3.2 cm/5.1  * 1.2 inch 10.5 * 4.8 cm/4.1  * 1.8 inch Net Weight: 304 g/0.67 lb/10.7 oz Power: Lithium battery Material: ABS + Silicone Package: OPP Bag Further: Waterproof/Wireless