Safety - 12V safety voltage, you need not worry about the potential safety hazard.

Fixed-point therapy - Sports knee pads, firmly fixed on the knee, keep the heat over your knee.

Massage - Built-in motor vibration massager, stretching tension physique and muscles.

Asiatic wormwood physiotherapy - warming and activating meridian, promoting "qi" to activate blood, clearing heat for detumescence and antibacterial.
