Features： 1、Hot Compress: Electric knee massager with infrared heating, it massages your knee in all directions to relieve knee pain and discomfort. 2、Vibration Massage: Knee massager adopted vibration mode for reducing deep knee pain, give your knees a full and comfortable massage. 3、LED Screen: Equipped with a large LED touch screen control panel for clearly visible and easy operation, which is more convenient to use. 4、 Fitting: Ergonomically designed, cordless knee massager can ly fitted to your knees for a comfortable knee massage experience. 5、Compact Size: Electric knee massager adopted cordless design, light and portable, which is easy to carry and store, can be used at home or outdoors. Specification： Item Type: Cordless Knee Massager Material: ABS Battery Type: 3600mAh Lithium Battery(Included) Hot Compress Gear: 9 Vibration Gear: 9 Uses: Relieves soreness and discomfort for anyone with knee problems How to Use: 1. Hold down the power button for 2 seconds. The power indicator is on. The default setting of the hot compress function is 1, and the hot compress is 01. Infrared light will shine. The vibration function in 1st gear is enabled, and the vibration is displayed as 01. The output strength of the electrode output port and the electrode function is 1. 2. Hold down the power button for 2 seconds to power off the device. Press the hot compress button for each time, and the hot compress function changes to 1 gear. 1-2-3-4-5-6-7-8-9- Closed 1 loop. Heat is shown as "01" and "02", "3", "04" '05,' 06 07, "" 08", "09" and "00", "" 01. When the hot compress function is turned on and off, infrared light is turned on and off. 3. Every time you press the vibration button, the vibration function gear increases by 1 gear, totaling 9 gears. 1-2-3-4-5-6-7-8-9- Closed 1 loop. Vibration is shown as "1", "2", "3", "04", "5", "6", "7", "08", "09", "00", and "01". There is only one compound mode of vibration. 4. Each time you press the key, the functional strength of the electrode increases by 1 gear, totaling 5 gear positions. 1-2-3-4-5-1 Cycle sequence. The electrode has only one composite pattern. When the battery is low, the power indicator flashes and the buzzer says "drip, drip" to charge the battery. When the battery is extremely low, the power indicator blinks, and the buzzer automatically turns off after three beeps. Press the power button and automatically shut down after 30 minutes of work. The power indicator blinks during charging. When fully charged, the power indicator lights up. 5. Connect the physicaltherapy cable to the electrode output socket, and connect the other end to the two electrodes. Apply the electrode sheet tightly to the area that needs massage. (Both electrodes must be attached to a person at the same time to perform the massage.) Package List： 1 x Knee Massager 1 x USB Cable 1 x Electrode Wire 1 x Manual 2 x Electrode Pads