How to use it: 1. Turn on: Press the ""On/Off"" button , the displ- ay will light up, display the intensity value ""0"" and battery power, and the instrument is in standby mode. 2. Adjust the intensity: press the ""+"" and ""-"" keys to adjust the Intensity, each press is 1 gear, and the highest is 9 gears. The intensity is adjusted from the low g- ear, and it is better to feel comfortable. 3. The correct posture for holding the instrument: Just like holding a pen, the tiger?s mouth should be fully attached to the conductive sheet, and the physiotherapy head c- an fully contact the skin to perform physiotherapy. 4. Mode adjustment: There are two red light modes, which are turned off by default. Press the mode button to enter the ""Continuous Output"" mode. The physiotherapy head will always emit red light. Press the ""mode button"" again to switch to the ""intermittent output"" mode, and the physi otherapy head hole will emit red light Intermittently. Press the mode button for the third time, the red light function is off. 5. Replacing the physiotherapy head: The instrument is equ ipped with different types of physiotherapy heads, which can be replaced according to your needs. 6. After use, press the ""on/off"" button to turn off the instrument. 7. Charging: When charging, the green light is on; when it is fully charged, the green light is off. Function Intelligent point detection, audio prompts, detection / treatment function of a key switch creating a ""family day care meridian"" and is a major breakthrough in the history of Chinese medicine acupoint detection sensitivity can be adjusted according to different skin types and skin conditions. Features: 1.The essence of Chinese medicine, health promotion; 2.Fusion of modern biotechnology; 3.Without piercing the skin to do acupuncture; 4.Simple operation, easy to carry; 5.Safe and effective, with no side effects; 6.Automically search the acupuncture,it will not work if not find the acupuncture and if meridian obstruction; 7.Transient pulse; 8.Accurate physical therapy; 9.Affordable family use. Packing Included: Electronic Acupuncture pen *1 Heads *2 Cable *1 User Manual *1 dose not include adapter.