1. Fabric: synthetic fiber 2. Washable 3. 6-speed temperature adjustment function 4. Rated power: 120W 5. 3 seconds fast heating, safe and energy saving 6. Safe single loop heating wire 7. Rated voltage: 110-240V 8. The fabric is comfortable and soft and fits the skin 9. Can be covered or covered, suitable for a variety of scenarios 10. With LED work indicator, intelligent circuit control 11. Intelligent temperature sensing and automatic control of on-off function 12. 4-speed time setting to prevent burns caused by excessive heating 13. Applicable parts: waist, abdomen, shoulders, neck, knees 14. Hands-free design, adjustable buttons help secure heating pad on neck and shoulders 15. British BS 240V, European GS 230V, American UL 120V, Japan PSE 100V, Australia SAA 240V 16. The heating pack is ergonomically designed and the neck contour fits perfectly, preventing rapid heat loss from the shoulders and back 17. Size: 94x56cm 18. Weight: 810g