Description: 3-in-1 Massager: This heated massager wrap pad made of skin-friendly super soft fabrics, is not only used for knees, but also for elbow and shoulder. Equipped with one extension strap with length of 23.6in, help you to secure the massager in place on your arms, thighs, knees, calves or ankles. Strong fastener on the straps can attach very firmly, no worry about falling down. 5-Levels Heating & 3-Vibration: The heated knee massager has 5 heating levels (40℃ - 45℃ - 50℃ - 55℃ - 60℃) and 3 vibration intensities, providing great for relax and comfort for your knee, elbow and shoulder. Choose the suitable heating / vibration levels to relieve your pain. Relieve Pain: The knee brace wrap combines heat and soothing vibration function, providing for arthritis knee pain relief and injury recovery. Heating function boosts circulation and reduces joint pain and joint swelling; and vibration function further relieves muscle soreness, cramps and muscle stiffness. Easy Operation: This knee massager has built-in control panel,there are only 4 buttons, very easy to operate, functions or levels are dispalyed with different colors of indicator light. And it is programmed with a 20 mins auto shut off function, no need to worried about forgeting to turn it off, avoide overheated or overmassaged, safe to use. Cordless & USB Rechargeable: Built-in 1600mAh rechargeable battery, it can work about 30 mins according to different modes after 3-4 hrs fully charged via the included USB Cable. No messy cord, you can wear it wherever you want. You can wear it to work, study,sleep, do housework, etc.. A perfect gift for mom, dad, men, women, parents or friends in birthday, thanksgiving, Christmas. Specification: Product Type: 3-in-1 Heated Knee Shoulder Elbow Massager Color: Black Material: ABS, Neoprene Rated Voltage: 5V Rated Power: 7W Charging Method: USB Type-C Operation Method: Button + Touch Control Battery: Built-in 1600mAh Battery (Battery is not for individual sale) Charging Time: 3-4hrs Working Time: 30mins Function: Vibration, Heating Vibration Levels: 3 Gears Heating Temperature: 40℃ - 45℃ - 50℃ - 55℃ - 60℃ / 104℉ - 113℉ - 122℉ - 131℉ - 140℉ Extension Strap Length: 60cm/23.6in Item Size: 51.5 x 28.5cm / 20.27 x 11.22in Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 1 x Heated Massager Pad 1 x Type-C Charging Cable 1 x Extension Strap 1 x User Manual