1、Low frequency pulsed micro current, through the micro current pulses to simulate real life massage techniques to trigger muscle movement, relieve muscle tension and discomfort, thereby reducing muscle soreness. 2、Simulate 5 kinds of massage techniques, 6 levels of intensity can be adjusted with the "muscle", the smooth design of the patch with the perfect fit of the skin. 3、Massage not only the cervical spine, multiple parts of the whole body massage physiotherapy, massage patch can be attached to other fatigue parts of the body, take care of arms, legs, waist, back, shoulders one by one. 4、USB magnetic charging box, fast charging and durable battery life, equipped with magnetic charging interface, charging is easier, just attach it to your body, convenient and practical. 5、Relieve the symptom to tighten the shoulder, waist and back, it is lightweight and portable, you can do muscle training in the office, bedroom or anywhere you want, not just at the gym. Item Type: Mini Cervical Spine Massager Patch Material: ABS Modes: Kneading Mode, Beating Mode, Massage Mode, Automatic Mode, Scraping Mode Power Supply Mode: Lithium Battery Battery Capacity: 50mAh (Shipped with Built in Battery) Applicable Symptoms: Sedentary Office Work, Shoulder and Neck Strain Fatigue Driving, Muscle Stiffness All Night Playing, Sore Neck Wrong Sleeping Position, Stiff Neck Discomfort 2 x Massage Patch 1 x Host 1 x Charging Case 1 x USB Charging Cable 1 x Manual