Instructions for use: 1. Press and hold the power button to turn it on and off. 2. Automatic mode (working mode will cycle automatically) 3. Manual mode (can switch + or - switch working mode) Operation Guide: 1. Make sure all parts are securely connected. 2. Apply some lubricant around the silicone ring to reduce friction. 3. Gently insert the penis, making sure there is a tight seal around the penis. Recommendations for use It is recommended to exercise once a day in the morning and evening, for 5-10 minutes each time, until the penis is comfortable and erect, pay attention to the penis pulling, pause for 1-3 seconds, then release the pressure, pause for 3-5 seconds, and then cycle pumping and deflating. Note: It cannot be in the extraction state for a long time, and the deflation cycle must be extracted to avoid hurting the penis. Usage time: 1. (1 5 5) days, 5 minutes a day, up to 2 times a day 2. (6~10) days, 8 minutes a day, up to 2 times a day 3. (11 15 15) days, 12 minutes per day, up to 2 times per day 4. (16~20) days, 16 minutes per day, up to 2 times per day 5. (21 25 25) days, 20 minutes per day, up to 2 times per day