● IPX7 offers complete waterproof protection, making it suitable for use in the bathtub, easy to clean, and pressurizes water baths for optimal results. ● Choose from 4 suction and pressure hold levels, along with 3 cycle training levels, for a safer and simpler experience with one-click deflation. ● Monitor pressure values in real-time with the silicone screen display. ● The noise-reducing motor combines a 3.5M motor with a soundproof silicone strip for quiet, waterproof operation. ● The masturbation cup mode is compatible with TPE vaginal soft glue (note: vaginal sleeve not included) and provides a 3-speed cycle. ● Comes with 2 high-purity silicone rings for longer service life. Product parameters: Function: 3-speed cycle + 4-speed pressure maintaining and sucking + one-button deflation Pressure level: 0-35 kPa, 0-45 kPa, 0-55 kPa Waterproof grade: IPX7 Air pump: 370 fully waterproof air barrier membrane + waterproof solenoid valve Barrel height: 20cm Barrel mouth diameter: 6.5cm Silicone ring diameter: 2cm+2.8cm Material: silicone+ABS Working voltage: 3.7V Charging time: 2.5 hours Working time: 2-2.5 hours Charging: USB magnetic charging Noise: less than 60db IPX7 100% waterproof: unlike conventional electric pump, our pump is really IPX7 waterproof, you can use it in the bathroom and in the bath for a better sexual experience. The pump is very easy to clean and can be completely submerged in water for real cleaning, which is safer and more hygienic. Enlargement and extension of sex time: this electric pump strengthens 60% of the muscles in the by vacuum pressure and promotes a fast, larger, stronger and more lasting erection. The vacuum pump is the perfect choice for a sexual foreplay, with the included ring set extends your intimacy and leads to better love play 4 different suction intensities: the pumps have 4 selectable suction levels, including a constant pressure mode with 1-3 levels and the intelligent suction mode with 3 levels. After you turn on this men's sex toy, you can select the desired training mode for enlargement by touching the LCD display. Silicone screen display and super quiet: unlike other vacuum pumps, automatic suction electric pump is super quiet and offers you intense pleasure. The torment pump is equipped with an Silicone screen display on which the corresponding air pressure is displayed. This makes the operation easy and helps you understand yourself even better. Instructions: 1. Trim the hair around the base of the penis. Not necessary, but worth it for a tighter seal and to prevent any pubic hair mishaps. 2. Apply water-based lu*bri*cant to the shaft and base of the penis. Reduces friction for comfort and easier pump removal. 3. Insert the penis into the vacuum pumps – adjust until comfortable. Use the manual or electric pump to create a vacuum by sucking out the air. Remember, it's a marathon, not a sprint, so go slow. 4. Most people start to see changes within 30 seconds to 7 minutes. Once you achieve the effect you want, firmly grasp the base with one hand, remove the tube, and put on the constriction or lock ring to maintain hardness. Please skip this step if not for sex. 5. To minimize side effects, don't use the pump or ring for more than 30 minutes. If you want to get better training effect, you can rest for a few minutes during the period.