3-in-1 Knee Massager. With 3 massage modes, 3 heating levels, 3 vibration modes and lights, the functions and modes of this knee massager can be adjusted and switched at will, suitable for different people's needs. Simple and Easy to Use. Smart knee massager is equipped with an LED touch screen with obvious icons and sensitive touch screen. Simply press and hold power button to turn on the device, which makes it very convenient and easy to use, more suitable for the elderly. Comfortable Design. The rechargeable knee massager wraps completely around your knee. Equipped with an extended and adjustable strap, suitable for most body sizes to keep your knees more comfortable and relaxed. High Capacity Battery. Cordless knee massager is equipped with 3000 mAh high capacity battery that can be used for multiple cycles. usb-C port for quick and easy charging with a built-in 10-minute timer, making it simple and easy to use. Thoughtful Design. The Cordless design of this leg massager is easier to use and can be used at home, weight 1.8 lbs, in the office or on the go, so you can enjoy the comfort and relaxation of a massage anytime, anywhere.