•Full-protection airbags (inner and straps) squeeze and inflate and deflate, allowing the knee to enjoy air pressure relaxation massage •D Surrounding defense of damaged knee joints, built-in 20 red light therapy lamp beads, specific wavelengths of far-red internal and external wavelengths penetrate into the knee •The specific wavelengths of far-red internal and external waves penetrate into the knee, relieving fatigue and discomfort •Three heating modes, warm heat compress knee, carbon fiber far infrared heating pads. Heating temperature Low: 45℃+3℃, medium: 50℃+3℃, high: 55℃+3℃ •Intelligent timer button: timer button: 15 minutes/20 minutes/25 minutes/30 minutes •One button start, large screen display, wireless use Specifications: •Material: ABS •Rated voltage: 5V1A •Rated Power: 5W •Timer: 15mins/20mins/25mins/30mins •Heating Temperature: Low: 45℃+3℃, Medium: 50℃+3℃, High: 55℃+3℃ •Built-in battery: 2000mAh •Product Size: 20.5 x 15.5 x 17.5cm •Certifications: CE, ROHS Package included: •1 x Knee Protector Massager •1 x Type-C Charging Cable •1 x English Manual •Other items not included