We-Vibe has continued to innovate this much loved bullet, creating a motor that is extremely powerful, 8 vibration options that are rumbly, and a shape that is optimized for maximum pleasure. Tango X is compact, quiet, rechargeable and waterproof. Ideal size for sharing, playing and travel. Travel-lock feature and 2-year manufacturer warranty included. Run-time upto 2 hours. Charge time: 90 minutes. Total Length: 4-inches.