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 cervical spine. 2. Constant temperature massage. Hot compress at 42℃ can relax blood vessels, relax muscles and bones, accelerate blood circulation and relieve cervical pain. 3. 5 massage modes and 16-step force adjustment. Free combination mode Beat mode Scraping mode Acupuncture mode and Massage mode 4. Intelligent voice system prompt  5. Shut down at regular intervals. The default 15 minutes after automatic power failure, safer, more assured. 6. USB charging. 1200mAh battery, charged for 2 hours, massaged for 15 minutes every day, lasted for about 1 month.