1Suitable for the people with arthritis, arthralgia and cold legs. 2Ergonomic design, comfortable to wear. 3Wireless design, convenient to use. 4Smart temperature control at 45 to 60 degrees, no skin damage, safe to use. 5Helps to relief knee or joint pain, accelerate blood circulation, relief muscle or joint stiffness etc. This product will help to relief knee or joint pain, accelerate bloodcirculation, relief muscle or joint stiffness etc. Smart temperaturecontrol at 45 to 60 degrees, no skin damage, safe to use. Wireless design,convenient to use. Features: 1. Helps to relief knee or joint pain, accelerate blood circulation, reliefmuscle or joint stiffness etc. 2. Smart temperature control at 45 to 60 degrees, no skin damage, safe touse. 3. Wireless design, convenient to use. 4. Ergonomic design, comfortable to wear. 5. Suitable for the people with arthritis, arthralgia and cold legs. 6. Hook&loop design, adjustable tightness. 7. Portable and rechargeable Specification: Condition: 100% Brand New Item Type: Knee Massager Color: Black Power: 12w Input Voltage: 8.4V/1500mA Voltage: 110-240v Package Weight: Approx.557g Package List: 1 x Main Machine 1 x Brace Wrap 1 x Cable