Edge 2 - the worlds first adjustable prostate massager!. It will hit YOUR spot! New, adjustable arm design for more intense and accurate P-spot stimulation. Larger bulb just above the nexk to ensure muscle retention and stability during use. Dual, whisper-quiet motors for maximum pleasure. Upgraded battery for prolonged high-level vibration. Magnetic charging port for significantly improved charging experience. New antenna location and an updated printed circuit board to improve user experience and connectivity. Designed for everyone- comfortable for beginner or advanced users! Compatible With: iPhone/iPad Air/iPad Mini/iPod Touch iOS 10.0 and later. Android 4.3 and later (with Bluetooth 4.0 enabled) Mac (with Bluetooth 4.0 enabled) Windows PC (needs a Lovense USB Bluetooth Adapter to connect). IPX7 Waterproof. USB rechargeable - 1 - 1.7 hours of continuous use. Dimensions: Length - 4.89 inches. Insertable Length - 3.59 inches. Width - 1.38 inches.