The Simplicity George 3.5 textured vibrating egg has an astounding 36 functions of vibration to choose from. controlled with a small handheld remote. George has a built-in USB charger. so you'll never have to search for a charging cable. Use with a water-based lubricant. * Thirty six functions of vibration * Waterproof * Silicone. ABS plastic * Rechargeable with built-in USB * One hour of charging provides up to two hours of vibration * Measures 3.5 x 1.3 (9 x 3.2 cm)