Description Net content:640g Color:as the picture shown Rated power: 7W Rated voltage: 3.7V Battery capacity: 1800 mAh Number of motors: 2 motors Heating method: 2 sets of heating lamps Temperature control range: 40-60°C Dimensions: 107*23cm Features: 1. Utilizes far-infrared heat compress technology to deeply penetrate and promote blood circulation in the lower back, effectively relieving muscle fatigue and stiffness. 2. Intelligent constant-temperature heating system with multiple temperature settings conforms to the waist curve, providing a comfortable and warm massage experience. 3. Built-in dual-motor vibration massage heads simulate manual kneading, precisely massaging key lumbar acupuncture points and relieving lumbar muscle strain. 4. Portable and wearable design with freely adjustable elastic band for use at home, work, or outdoors, protecting your lower back anytime, anywhere. 5. Suitable for those who sit for long periods of time or suffer from lumbar discomfort, it helps improve local microcirculation and aids in lower back function recovery. Storage method: Store in a cool and dry place, avoid sunlight. Notes: 1. The manual measurement tolerance is 2-5. Please don't mind your replacement. 2. Due to the difference between different monitors, the image may not reflect the actual color of the item. Thank you very much! 3. The effect varies from person to person, it is recommended to persist in use. Package includes: Heating waist belt*1