Discreet and silent. Waterproof and USB rechargeable. Designed to warm up during use. 4 Settings: 3 speeds (low, med, high), and wave. Phthalate-free & body-safe materials including stainless steel body with nickel-free plating and body-safe silicone button. 3.75″ pendant with removeable 26” chain, velvet protective pouch, and USB charging cable included