Electric Penis Pump - Water Bath Vacuum Enlarger for Men | Effective Massage & Enlargement Trainer | Premium Male Sex Toy ### Manual Mode 1. ** Start suction ** : After turning on the device, press the power switch button to start suction. The vacuum value dynamic progress bar on the screen gradually lights up from left to right. Press the power switch button again to stop suction. 2. ** Release vacuum ** : Press the vent button to release vacuum step by step; Long press to release all vacuum at once. ### Smart Mode 1. ** Set the maximum vacuum value ** : Before entering the smart mode, set the maximum vacuum value required. Press the switch button to start suction, and click stop again after reaching the desired vacuum value. The device automatically remembers this vacuum value as the maximum value of the smart mode. 2. ** Enter Smart Mode ** : Press the button again (AI symbol on the display lights up) to enter smart mode. In smart mode, the device automatically sucks up to a set maximum and then releases the vacuum completely. After release, the cycle of suction and release is repeated for 20 minutes. 3. ** Adjust hold time ** : In smart mode, press the button to change the maximum vacuum hold time. The initial hold time is 0 minutes, each press of the AI button increases by 1 minute, and the hold time at the bottom of the screen changes from 0 to 9. 4. ** Mode switch ** : In intelligent mode, press the power switch or ventilation button at any time to return to manual mode. Pressing the Smart button again will return you to smart mode. 5. ** Activate Memory Mode ** : Press and hold any button (AI) at any time to activate memory mode; The (V) symbol lights up at the bottom of the screen. Close and open again, press and hold to cancel memory mode again; (V) The symbol is extinguished. 6. ** Turn off the device ** : Long press the power switch button to turn off the device, the screen is off, and all vacuum is released at the same time. 7. ** Underwater use ** : When used underwater, press the ventilation button while exposing the top outlet of the product to the water surface to speed up the ventilation process. ### Charging 1. ** Charging time ** : 140 minutes, working time: 180 minutes. 2. ** Battery status ** : The battery power progress bar fluctuates when charging, and remains full after full. --- Cleaning and Maintenance 1.The transparent cylinder and head controller are detachable and can be washed thoroughly with water.2.Keep away from high temperatures and dirt; avoid direct sunlight exposure. 3.After using the product, please turn it off promptly to prevent prolonged operation, which may lead to core aging and shortenthe lifespan. Precautions 1.  This product is intended for use by adults only;   it is prohibited for use by minors. 2.  Be cautious not to exceed the minimum effective vacuum level during use;   avoid excessively high vacuum negative pressure. 3.   If you feel uncomfortable, immediately press the release button to decompress or stop using it immediately. 4.  Do not attempt to replace the battery yourself;   improper replacement or repair may damage the circuit or allow water to enterthrough gaps. 5.  This product contains sensitive electronic components;   do not drop or crush, as it may result in malfunction.