Item Type: Cordless Knee Massager <br>Material: Fabric, ABS, electronic components <br>Battery: Lithium battery, 2000mAh (built in) <br>Massager Size: Approx. 69 x 23 x 3cm / 27.17 x 9.06 x 1.18in <br>Charging Voltage: 5V <br>Rated Voltage: 5V <br>Rated Power: 7W <br>Vibration Modes: 3 modes <br>Temperature Settings: 3 settings <br>Charging Time: 4 hours <br>Timer: 30 minutes <br>Usage After Full Charge: 2 hours <br>Product Features: <br>This product uses vibration massage combined with heat therapy to promote blood circulation in the knee joints, relieve muscle and joint pain. It offers multiple temperature and vibration modes to choose from, suitable for different individuals for knee massage and maintenance. With the extended strap, it can also be used for maintenance on other parts of the body. <br> <br> <br>Power Button: In standby mode, lightly tap the power button once, then tap and hold for 2 seconds to turn on the device. The default setting upon turning on is level 3 heating and level 1 vibration. It also defaults to a 15-minute timer, automatically shutting off after 15 minutes of operation. Temperature Adjustment Button: Upon turning on, the default temperature setting is level 3. Lightly tap the temperature button to adjust the heating temperature (switch between no heating, low temperature, medium temperature, and high temperature). The corresponding indicator lights up when adjusting. Vibration Mode Adjustment Button: Upon turning on, the default vibration setting is level 1. Lightly tap the vibration button to adjust the vibration mode (switch between level 1, level 2, level 3, and no vibration). The corresponding strength indicator lights up when adjusting. Instructions: 1. Before use, please make sure the massager can start normally. If it cannot start, please charge the massager with the included charging cable before use. 2. Separate the hook and loop fastener straps of the massager to fully unfold the product. 3. For knee usage: Place the massager on the knee, with the mesh fabric facing the body. Align the heating area with the knee joint and fasten the two hook and loop fastener straps. 4. For elbow usage: Place the massager on the elbow, with the mesh fabric facing the arm. Align the heating area with the elbow joint and fasten the two hook and loop fastener straps. 5. For shoulder usage: Attach the extended strap to the longer end of the hook and loop fastener straps. Fix the massager on the shoulder with the mesh fabric facing the shoulder. Align the heating area with the shoulder joint and finally fasten the two hook and loop fastener straps.<br>1、PAIN REDUCE: Heated knee brace wrap provides soothing heat therapy to reduce knee pain and discomfort caused by arthritis, joint stiffness, and muscle soreness. <br>2、ADJUSTABLE FIT: The hook and loop fastener straps allow you to adjust the brace according to your desired compression and support level, ensuring a comfortable and secure fit. <br>3、PORTABLE AND VERSATILE: Lightweight and compact, making it easy to use at home, in the office, or while traveling. It can also be used on other body parts like the elbow or shoulder. <br>4、USB RECHARGEABLE: No need for batteries or disposable heating pads, this heated knee brace wrap can be easily charged with a USB cable for convenient and eco friendly use. <br>5、MULTIPLE TEMPERATURE SETTINGS: Choose from 3 levels of heating temperatures to suit your preference and provide customized pain reduce.1. It is absolutely forbidden to enter a sleep state while using this product (there is a risk of burns). <br>2. Patients with acute knee swelling or bleeding should consult a doctor before use. <br>3. Patients with suspected acute trauma induced swelling or other specific inflammations should consult a doctor before use. <br>4. If pain worsens after using the product, stop using it immediately. <br>5