Pure Silicone Kegel exerciser with teasing tongue and easy retrieval cord. 12 intense functions of vibration, pulsation and escalation plus flickering action. 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 1 hour. Runs for 40 minutes on high speed and 50 minutes on low speed.