1、Automatic Control: The device can automatically control the countdown to work, effectively improve the cooling effect, and the cold compression device can be started with one click. 2、Convenient Cooling: Scientific cold compress device adopts semiconductor digital cooling technology, faster cooling, more convenient than traditional cooling methods. 3、Easy to Use: One button opening is easy to use, touch the temperature up and down buttons to adjust the appropriate working temperature,simple and convenient operation. 4、Scenarios of Use: The device is suitable for students reading drowsiness, working overtime, no state at work, driving fatigue and other scenarios, helping to stay awake. 5、Operational Approach: Wear the cold compress device in the central position of the forehead, adjust the bandage elasticity to the appropriate position, and fasten the bandage above the hook and loop fasteners. 1 x Smart Cold Compress 1 x USB Cable 1 x English Manual Item Type: Intelligent Forehead Cold CompressProduct Material: ABSProduct Weight: 200g/7ozProduct Size: 114x58x20mm/ 4.5x 2.3x 0.8inBattery Type: Lithium ion battery (shipped with built in battery)Battery Model: 18650Battery Capacity: 1100mAhWorking Temperature: 10 ℃~ 35 ℃Adjustable Temperature Range: 16 ℃~ 25 ℃