Function: 11 Frequency Vibration
Color: Black
Size: 13.6 * 4.4 cm/5.4 * 1.7 inch
Insert Length: 9.3 cm/3.6 inch
Net Weight: 169 g/0.37 lb/5.9 oz
Power: Lithium battery
Material: ABS + Silicone
Package: Color Box
Further: Waterproof/Wireless
Package Size: 20.5*20.5*8.2 CM