It uses high-frequency electrical pulses with infrared heat to relieve neck pain, improve circulation, and promote relaxation during daily use. It offers six massage modes and sixteen intensity levels for precise control. Each 15-minute session is powered by two AA batteries (not included). Lightweight and cordless, it helps relieve deep muscle tension, reduce spasms, and improve blood flow in the neck for everyday comfort. Use it once a day and pause after each session for optimal results. Made from lightweight yet durable composite materials for a safe, comfortable, and long-lasting massage.