Portable Electrical Pulse Pain Relief Pen Analgesia Acupuncture Point Massager for Muscle Comfort and Relaxation and Feature:Pulse shape of a ballpoint pen analgesic pain instrument.Stimulating the nerves to activate the endorphin.Safe and reliable quality, no side effect, portable and easy to use.Handy, fast-working and effective for pain relief.Suitable for both acute and chronic pain, such as muscle pain, back and shoulder pain, pain in the arms and legs, headache and migraine, tennis elbow, sports injuries, sciatica and other physical pain.Validity period reach to 100000 clicks.Activate endorphin from your body, which is a natural defense against pain.Also work through lighting clothing.There is no danger of excessive use.Pulses per second design without power supply and with minimum volume.How to use:1. Hand holding the pain pen, your index finger wrap around the metal ring firmly.2. Place the pen over the point of pain and click the gray button 30 to 40 times, about 30 seconds for each pain point.(If the pain range is large, you can choose 3 or 4 pain points throughout the pain area, forming a radius of 15 cm around the pain area.)3. Before using for each pain point, you can press on the Hoku (acupoints between the thumb and forefinger) to activate analgesic effect.4. If you need someone to use it, make sure you and the helper' body have direct contact, to facilitate the conduction of electrical pulses5. Can be used across thin clothing.Specifications: Pain Relief, Body Relaxation, Joint Massager, PortableSize: 13cm x 2cm x 3cm/5.12" x 0.79" x 1.18" (Approx.)Package Included:1 x Electrical Pain Relief PenNotes:1. Please allowed 1-3mm differences due to manual measurement, thank you for your understanding2. Due to the difference between different monitors that the picture may not reflect the actual color of the item.