Neck fan instant cooling 59F radiator is the secret of this neck air conditioner. The neck fan air conditioner has a built-in semiconductor cooler that cools the back of the neck in seconds, refreshing your entire body. Heat energy is exchanged through the semiconductor heat sink, and cold air is delivered to the skin within 3 seconds, instantly lowering the body temperature by 59F? The 3-piece cooling neck fan technology uses 3 fins, (most neck-mounted air conditioners on the market are designed for fins, which are not cool enough and the sound is relatively loud. Only the air conditioner dissipates heat, and there is no air duct. Wind) wraps your entire body Neck, cooling every inch of your skin (left/right, nape, cool at the same time) Personal fan is the ultimate neck cooler? 2.5 hours charging | 3 hours battery life Bladeless Neck Fan 3500mAH Charge for 2.5 hours to experience up to 1.5~3 hours of cooling mode (portable neck fan usage time may vary depending on ambient temperature) LED screen displays battery Lifespan and setup mode. The cold-neck dual-mode cooling and heating fan precisely controls temperature and provides reliable and even cooling or heating. The portable neck fan has 2 modes, 6 levels, 3 levels cooling mode and 3 level heating mode to help you stay warm in winter and cool in summer. LOW NOISE - The easy-to-move rechargeable neck fan features a bladeless design to keep you warm in the winter and cool in the summer. Brings quiet and stable air conditioning, the neck fan is powerful and only weighs 280 grams, suitable for jogging to hiking, the close-fitting neck fan fits your neck perfectly, the C-shaped neck fan ensures a safe and active fit, and the wings are flexible to fit all neck sizes . Stylish Design and Hassle-Free After-Sales Service Your personal favorite neck look is the headphone design, which is stylish and versatile. Use without worrying about hair being caught, imagine the surprise moment when your loved ones receive the neck guard as a gift, we will serve you wholeheartedly, the company provides lifelong technical support and after-sales service, please contact us with any questions. ",