Electric Penis Pump Strong Automatic Penis Enlargement Vacuum Pump Erection Cock Enlarger Dildo Extender Sex Toys For Men Male Description:1. Mode: Automatic mode/Manual mode(6 Modes/6 Speeds)2. Charging: USB chargig3. Noise: less than 70 DB4. Daily Waterproof5. Cleaning: After use, the ''toy'' has a large amount of secretions and lubricat residue. It will easily breed bacteria if do not clean it for a long time. So please , the vibrator should be cleaned as soon as possible. Warm water and soap can be used for cleaning.Privacy Guaranteed:Your privacy is the utmost importance to us. We promise send your products in secret condition, the packaging without any pictures and words about sex.1. Negative pressure/suction helps to relax the smooth muscle cells, this allows for sponge swells2. After the sponge expands, arterial blood flows in to speed up the sponge hyperemia and increases the hardnessof your penis. The more the sponge is inflated, the more solid your penis will be and the more it will grow.3. Air pressure will increase your cavernous body, with low vacuum pressure in the cylinder, your cavernous body will be exercised in a physical safe way.4. Universal design, fits all.Training & Masturbation Exercise for tough tall and straight. Stretching your penis. Enjoy Masturbation. Operational Guidelines:1. Ensure that all parts are securely connected.2. Apply a little lubricant around the silicone ring to reduce friction.3. Gently insert your penis, ensure that the seal is airtight around your penis.Instructions for use:1. Long press the power button to turn on and off.2. Automatic mode (operating mode will automatically cycle)3. Manual mode (can be switched + or - to change working mode)4. Please press (Outgassing) or-key (slow down key) long for deceleration or stop. If the exhaust speed is too fast, leadingto the penis with pull pain or discomfort.Please adjust to the pressure you feel most comfortable based on yourpersonal condition.