Electronic Acupuncture Massage Pen Set Meridian Point Therapy Body Pain Relief with 5 Replacement Heads < br>< br > Size: 18.3cm x 32.5cm (approx.) < br>< br > Battery: 1 x AA battery (not included) Effective for: Acute and chronic physical pain, Arthritis, Rheumatism, Osteoporosis, Sciatica, Spondylitis, Migraine, Sports injuries, Muscle and joint pain, Back pain, Fibromyalgia Package Includes: 1 x Electronic Acupuncture Massage Pen Set Features: < br >< br > - 1 to 9 degrees Adjustable < br >< br > - Fusion of modern biotechnology < br >< br > - without piercing the skin to do acupuncture < br >< br > - Easy operation , easy to carry --Safe and effective, without side effects Method of use 1.Open the pen cover, insert the battery and then tighten the pen cover. (Here you need to pay attention to whether the battery is in good contact with the pen cap spring) 2.After the battery is installed, press the "+" key to turn it on at this time, the screen will show "0". 3.When you press 1, the indicator light flashes to indicate it is working and you need to connect the pen tip to the skin, at this time you will feel the massage. (Note that the massage pen must touch the skin to feel the massage of the meridians.) 4.You can adjust the strength of the massage pen via "+" or "-" according to your own needs. After use, press the "0" key back, it will turn off after 5 seconds.