About this itemNeck Fan Instantly Cools 59FThe radiator is the secret of this neck air conditioner. the neck fan air Conditioner has a built-in semiconductor cooler that refreshes your entire body by cooling the back of your neck in seconds. Heat energy exchange through a semiconductor heat sink that transfers cold to the skin within 3 seconds, instantly lowering body temperature by 59F3 Cooling PlatesFast cooling neck fan technology uses 3 cooling plates, (most neck air conditioners on the market are designed for cool cooling plates, not cool enough and louder, only air conditioning cooling, no ducts will not blow wind) Surround your entire neck, cooling every inch of your skin (left/right, nape, simultaneous cooling) personal fan is the ultimate neck cooler2.5 Hours Charging|3 Hours Battery LifeBladeless neck fan 3500mAH charging for 2.5 hours can experience up to 1.5~3 hours cooling mode (portable neck fan usage time may vary according to ambient temperature) LED screen shows battery life and setting mode.Cooling And Heating Dual ModeCooling neck fan precise temperature control, providing reliable and uniform cooling or heating. helping you stay warm in winter and cool in summer.Low Noise-Easy To MoveThe rechargeable neck fan adopts a leafless design, bringing quiet and calm air-conditioning, neck fans are powerful and weigh only 280 grams, suitable for jogging to hiking, personal neck fan will fit perfectly on your neck, The C-shaped neck fan design ensures a secure active fit, and the two-wing flexible design adapts to all neck sizes.