Powered by TrueSonic® linear vibration technology, the first innovation in vibration motor technology in decades. * Provides the broadest range of vibration - from slow and thumpy to fast and buzzy - of any available vibrator, with more power than any battery-powered device on the market. * Ergonomic and discrete design. Comfortable and easy to use. * Body-safe construction using the highest quality silicone. * Waterproof and rechargeable. USB-powered charging dock allows for international use.