describe:1. Warmth: Our heated knee massager provides comfortable heat and massage to relieve knee discomfort, the best of both worlds.2. Professional Massage: Our smart heated knee massager technology applies precise pressure to key acupuncture points to maximize the massage experience.3. Professional Care: Our unique design provides a 360-degree fit around the joint while applying targeted pressure to release tension, leaving your knees looking like new.4. Versatility: Our heated knee massager has multiple functions, making it ideal for working out multiple areas of the body, including ankles and calves, making it a true multi-purpose tool.5. ULTIMATE COMFORT: Our heated knee massager, with its 3D ergonomic design and soft, stretchy fabric, molds to your knees and legs to give you a tight and comfortable fit.Specification:Product Type: Knee MassagerMaterial: polyester meshBattery: Lithium-ion battery (built-in)3 heating levels:Low temperature - Temperature range 113F/45C to 131F/55C.Media - Temperature range 132.8F/56C to 149F/65C.High temperature range 150.8F/66 to 167F/75packing list:1 knee massager.