Effective Chronic Pain Relief: Migaven pain relief pen, relief for arthritis, sciatica, sports injuries and muscle, joint and back pain, plantar fasciitis, tendonitis and muscle tension in other parts of the body. Do it right, Comfortable Experience: Read instructions carefully before use. The massage pen has 9 layers of energy, adapt from the first layer, choose the energy that suits you, and avoid discomfort due to overstimulation.You can adjust to the appropriate energy level according to different treatment needs. Easy To Use: Simply press the acupuncture pen to the affected areas and it will release an electric pulse to stimulate the meridian and acupuncture points in your body for healing and pain relief. Comes with a user manual that has several charts about body's therapeutic points to show where to use the pen. Suitable for All Pain: (1) Dome type head for facial muscle rejuvention and health care mainly; (2) Node type head specializes in node therapy and works on partial body parts; (3) Spheroidal type head appliable for quickly alleviating pain, work efficiently to relieve the tension. No Pain, sleep Better: Relieve neck, shoulder, waist pain caused by long-term work, ankle and muscle pain caused by excessive exercise, and pain caused by various diseases.Wake up due to pain in sleep, use electric pen to relieve pain and feel comfortable, fall asleep again.