The Rechargeable Stamina Pump is a high tech, fully automatic pump with easy to use pressure control. Totally self contained wireless design with a flanged base for secure seal. Features 4 ascending levels of suction power: increase or decrease at the push of a button. Quick air release valve releases pressure while maintaining suction. Made from Polycarbonate cylinder, ABS plastic buttons, ABS plastic with polyurethane PU Cote controller, Thermoplastic Rubber TPR sleeve, ABS plastic with metallic plating decor. 8.25 inches by 2.5 inches. Charging- Complete charge in 3 hours. Will run on highest speed for 2 hours. Will run on lowest speed for 3 hours.The lights will flash/escalate while charging. Once fully charged, they will remain fully illuminated/stop flashing.