Premium Silicone probe with tapered design features 5 functions of vibration, pulsation and escalation. Probe is solid and unscented with instant on /off button and travel lock feature. After a complete charge in 2.5 hours, the device will run on highest speed for 50 minutes, and on lowest speed for 3.5 hours. USB rechargeable, with charging cord included. Measures 4 in. by 1.25 in.