Material: silicone + ABS Main body size: 315*77*77mm Weight: 360g Maximum noise:< 60db Waterproof level: ipx6 Function: Sucking + negative pressure Accessories list: product body, instruction manual, charging cable, silicone case, storage bag Charging time: about 2H Discharging time: 1.5H Charging display: flashing Fully charged display: solid Start working: the light is always on Country of origin: China Working voltage 3.7V Charging cable specifications: magnetic charging Product button function description: from left to right Power on button: On/off/mode switching button, press and hold for 2 seconds to turn on, turn on and enter standby mode, press briefly to enter erection aid mode, press again to enter airplane cup mode, cycle, press and hold for 2 seconds to turn off Frequency key +: After entering the mode, short press to switch frequency 1.2..4 and so on to increase the frequency. Frequency key -: After entering the mode, short press to switch frequency 4.3..1 and so on to downshift. Exhaust button: Short press for the first time after entering the mode to pause, and press again to exhaust.