The Silhouette S9 is a sensual massager that flexes & bends for multi-directional positioning. Features 5 incredible functions of vibration, pulsation, & escalation. Intense incremental speed control allows you to find the right speed for your or your partner. USB rechargeable (includes charging cord). Completely charges in 2.5 hours. Massager will run on highest speed for 40 minutes, & on lowest speed for 3.5 hours.