Description Material: ABS+Diving Material: 73 * 29 CM System: 45-65 intake temperature: 45-65 Diplomacy content: 1 piece * electric massage knee pad (with battery) 1. To relieve the pain and relaxed body and mind, there are two mobile motors inside the charged knee heat massage device. It provides 6 -speed regulating vibration massage, relieve joint pain, muscle stiffness and knee joints, arms and leg joints Essence The additional optional thermal function can promote blood circulation, effectively reduce muscle stiffness and relax the body and mind 2. Vibration and temperature control this heating knee support 3 optional heating levels, with a temperature range of 40 to 65 C. When the heat reaches the maximum temperature, the heat will automatically circulate from high to medium. Press the button for 3 seconds to activate /stop. You can change the heating settings by pressing the button 3 briefly. 3. 8.4V AC power adapter and 1 USB cable connect the USB cable to the 5V / 2A can recharge the battery or other USB ports, such as laptops, desktop computers, car chargers, convenient and portable, please enjoy at home or outdoors, you can be free to free Go anywhere without connecting with the power cord. Equipped with 8.4 V adapters and 1 USB cables, no other charger is required. 4. High -quality skin -friendly fabrics made of soft skin -friendly heating knee massagers made of infrared magnetic fiber materials. The perfect combination of vibration and massage is easy to carry. For most people, knee support is standard size 5. Use a wide range of electric knees to relieve pain and spasm. Very suitable for road travel, travel, exercise, cooking, work, car use, office, etc.