USB Portable Hanging Neck Fan Cooling Cooler Heater Heating Air Conditioner Neck Massager for Home Office, Travel

Cold and warm dual-use, intelligent constant temperature, comfortable to wear, cool lighting, free hands easy to carry constant temperature hot compress warm winter high frequency Silent Noise reduction designIncrease the area of hot compress and control the temperature in real time every second. The product is equipped with two highly sensitive detectors. According to the algorithm, the temperature can be effectively controlled at the degree adjusted by the user and the constant temperature can be maintained.When you start the machine, you can enjoy the warmth and temperature quickly and evenly. It adopts the second generation heating technology, which has a stronger heating effect and a quick heating effect of 3 seconds. The temperature flows through the whole body with the blood of the artery as if it is wrapped by warm wind, cool RGB lights are as beautiful as dreams, long-lasting endurance travel travel without worrying about power 2600mHh battery life 150HCold compress cooling can effectively cool 10-15°C through the cooling 2s generated by semiconducting Peltier cooler, which can be transmitted to the deep skin for instant cooling. In a cool summer, there is almost no sound and no noise reduction. U-shackle neck perfectly fits elastic plastic silicone material