●Electric motor for super suction power to improve your erections and boost your sexual stamina while maximizing your pleasure. ●2 control modes and 4 pressure levels for a choice of sensations. ●Super quiet and USB rechargeable for use anywhere. ●High-quality silicone rings, longer replacement life. ●Detachable and easy to clean. Features: Vacuum Suction, 2 Control Modes, LCD Function: Vacuum Suction Frequency: 4 Frequencies Barrel diameter: 6.5cm Silicone ring diameter: 2cm (+0.2cm) Insertable Length : 7.87 in/20cm Material: TPE, ABS Waterproof: IPX5 Mute: <45 dB Power Type: USB Charging Charging Time: 120 mins Run Time: 60 mins Size: 12*2.95 in Weight: 0.75 lbs/350g Please note: Using the lube for the best experience. Looking for a workout that could give you impressive results almost instantly? The electric penis pump with a high-quality electric motor has a greatly increased suction power. The electric motor supports the vacuum pumping, and with the help of the safety valve the quick-release valve releases the vacuum at any time and the precise manometer regulates the vacuum suction. One-button automatic suction is easy to use and more convenient than manual. 2 control modes of this penis pump for you to choose from: intelligent constant pressure mode and manual pressure mode. You can choose mode 1 to keep a constant pressure value or mode 2 to experience an intelligent cycle of 4 different pressures. Unlike other electric penis, the automatic suction electric pump is super quiet and you can even use it at night. The Penis pump is equipped with an LCD that shows the corresponding air pressure. This makes it easy to use and helps you to understand each other even better! Please note: Using the lube for the best experience. Kind tips: 1.For safer transportation, the factory battery is only 20%, and after a long period of transportation, the battery may be insufficient. Please charge it for 3 hours before first use. 2.Please lubricate with water-soluble lubricant before use ●Automatic penis pump with transparent cylinder and LCD display to track your progress.