Specification: Brand: Jeeback Name: Neck Massager Model: G3 Rated Power: 5W Rated Voltage: 3.7V Power Supply: Polymer Battery Package Size: 180mm*170mm*60mm Remote Control Size: 80mm*40mm Package Included: 1 X Neck Massager 1 X Charging Cable 1 X Remote Control 4 Head Massage, 4 Times Effect TENS pulse massage | Double effect hot compress | Increase contact surface by 25% Increased Contact Area By 25% Small size, convenient Tens Pulse Massage, Completely Relax Neck Muscles Medically, low-frequency pulsed current therapy is a method of treating diseases with pulsed current of less than 1000 Hz. Using the TENS low-frequency pulse principle to simulate four major massage techniques, tapping, scraping, acupuncture, massage, and combined modes. 4 massage techniques combined with 10 levels of strength selection, there must be a set of settings suitable for your cervical spine. Caring for the cervical spine turned out to be so simple. 83 Deep Massages Per Minute, Say Goodbye To Stiff Neck Muscles 4-head wrap design, deep massage more areas of neck. The traditional double-headed neck protector will cause needle tingling pain when it deviates from the electrode during use. G3 uses 4 massage heads, double positive poles and double negative poles to form a comprehensive package, no matter how the user shakes, it will ensure that at least one side of the positive and negative poles are connected, and the use of unconstrained neck protection is more convenient. 360 ° Omnidirectional Floating Massage Head Flexible fit, Freedom of movement Constant Temperature Hot Compress > Double-effect soothing > Warm and comfortable Small And Light Only 150g Efficient care of entertainment time A Charge, Can Be Used For 8 Days If you use 30 minutes a day, you can continue to use it for 8 days. If there is no contact with the skin, it will automatically shut down after 60 seconds of no operation to ensure safe use and save electricity.