USB Charging Red Light Heating Massage Lumbar Belt Warming Waist Belt 1. Red light heating function with 3 adjustable temperature settings for personalized comfort and intelligent temperature control to suit various environments. 2. Mesh pocket design allows for optional use with herbal inserts for warm compress therapy (herbs not included). 3. Vibration massage function with 3 adjustable intensity levels simulates manual massage techniques. 4. Dual heating and massage functions with 3 heating levels and 3 vibration modes. Functions can be used simultaneously or independently. Combined heat and vibration help relax muscles and reduce discomfort. 5. Built-in 5000mAh rechargeable battery with USB charging for convenient and portable use. 6. Digital display controller with touch-sensitive buttons shows temperature and battery level. Easily control heating and massage settings with the included controller. 7. Adjustable wraparound design with secure fastening for a customized fit. 8. Anti-slip touch mode prevents accidental button activation during use. Parameters: 1. Material: Neoprene 2. Operating voltage: 5V 3. Charging current (maximum heating): 1850mA 4. Charging time: 2–3 hours 5. Battery capacity: 5000mAh 6. Usage time: - Massage only (maximum level): 1440 minutes - Heating only (maximum level): 102 minutes - Heating and massage (maximum level): 660 minutes 7. Belt dimensions: 118 x 20cm, Long strap: 92 x 7.8cm 8. Product weight: 860g Package contents: 1 x Red light heating massage belt 1 x Long strap 1 x USB charging cable 1 x User manual 1 x Color box