SHOULDER NECK HEATING PAD: Provides heat to the neck and back of the head. You can also spray a mist over the to create a wet compress. LCD CONTROLLER: Displays heating temperature, the higher the value, the higher the temperature, heating pad will auto off when it up to the target temperature to ensure safe use. SUITABLE PARTS: With large heating area, which can treat the neck, back, shoulder, abdomen and other parts, and you can also use it as a knee heater. 6 GEAR : With the included controller, giving you control over the effectiveness of your neck, shoulder and back treatments. OVERHEATING PROTECTION: Built in intelligent chip, when the temperature is too high, it will start the overheating protection to preserve your safety.