This Luvpump®Smart Automatic Penis Pump can be operated in a Manual Mode or Smart Mode that will enable you to record the desired vacuum level you want, then automatically complete the smart cycle with the push of a button. Slide your VIP into the silicone sleeve and press the button to discover 3 workout modes and intensely pleasurable sucking sensations. The smart exercise mode also makes it very easy to complete a desired 20 minute workout whilst not paying attention to the pump. You could watching TV or even working whilst using this pump making it much more easy to fit into every day life and make a solid routine. The Smart Pump's operation is very quiet, is rechargeable via a USB cable, and is easy to disassemble for cleaning of the cylinder and sleeves. Always clean with an antibacterial soap or toy cleaner before and after each use. Never immerse the head in water and do not use silicone lubricants. Pumping sessions increase blood flow to the penile region, which can stimulate firmer, longer-lasting erections. Pumping can also heighten sensitivity, aid in stamina training and temporarily enlarge the size of your penis. A single 10-minute session can thicken and lengthen your penis for up to 24 hours. The removable silicone sleeve helps to provide maximum suction and comfort.