Erec Tech is the newest most advanced vacuum therapy system available on the market today. Designed with state of the art technology the Erec Tech is durable and incredibly easy to use. The Erec Tech B.O.S. has a quite smooth running motorized pump head. With the press of a button this system will provide you with an immediate on demand erection. Innovative Cylinder design allows the base of the cylinder to fit comfortably against your body. Custom fitting cushion inserts allow you to adjust the opening of the cylinder to provide a perfect custom fit. The Stamen Easy Loader uses patented technology and design features to make loading the Tension Systems completely effortless. The Tension System is the most important component in any vacuum therapy system. The Erec Tech B.O.S. Battery Operated system includes a variety of sizes of the Ultimate Tension Systems. The Ultimate Tension Systems are superior in quality and design to any tension system on the market today. Discreet carrying case holds the Erec Tech and all accessories. Also includes 4 oz Stamen Sealing Gel Loading cone Instructional DVD User s Manual and Lifetime warranty. Uses three 3 AA batteries. The Erec Tech Vacuum Therapy System can also be used successfully in combination with other erectile dysfunction treatments such as oral drugs injections etc.