Powerful. compact. dual stimulator with reverberating vibrations 10 functions of intense vibration. pulsation and escalation Power boost feature for instant maximum vibration State-of-the-art memory chip resumes on last function used Easy push-button control with security travel lock feature USB rechargeable charging cord included Complete charge in 2.5 hours Runs 40 minutes on high speed and 1.5 hours on low speed One-Year WarrantyDimensions:Shaft: 3 x 1.25 in.Stimulator: 1 x .5 in.