Overview: 1. Through low-cycle pulse technology, penetrate 3-5 centimeters below the skin to open the pain points and meridians, and lighten the pain of the cervical spine. 2. Constant temperature massage. A hot compress at 42 can relax blood vessels, relax muscles and bones, accelerate blood circulation, and relieve cervical pain. 3. 3 massage modes and 15-step force adjustment. Acupuncture and moxibustion mode, massage mode, and knocking mode. 4. Shut down at regular intervals. The default 15 minutes after an automatic power failure, safer, more assured. 5. USB charging. 1600mAh battery, charged for 2 hours, massaged for 15 minutes every day, lasted for about 1 month. Specification: Color: White/Pink/Dark Blue Size: 142*138*60mm/5.59*5.43*2.36" Material: ABS + 304 stainless steel Weight: 160g Charging mode: USB Voltage: DC5V; 1A; 5W Battery capacity: 1600mAh Package Content: 1 X USB Neck Massager 1 X USB Charger 1 X Remote Controller 1 X User Manual