Unlike other neck fans that just blow air! This one efficiently cools your neck with a cooling plate. It feels like you're wearing ice wrapped in a thin cloth around your neck. Plus, the airflow from the back of your neck to the top of your head is comfortable. A must-have item to spend this summer comfortably. Perfect for preventing heatstroke. ■ Features 【Equipped with the strongest Peltier element & instant cooling in 2 seconds】 ...Using the most advanced Peltier cooling technology, the cooling plate is applied to the neck to instantly cool down. It transmits coolness to the skin in 2 seconds, giving you a refreshing feeling like you're holding a cold can of juice against your skin. 【Both cooling and airflow functions & easy-to-understand LCD display】 ...Each time you press the "cooling button," you can switch between 1C (20℃), 2C (18℃), and 3C (15℃). Each time you press the "fan button," you can switch between three levels: weak, medium, and strong, from a gentle breeze to a strong wind. Equipped with an LCD display, the mode switching and remaining battery charge are digitally displayed, making it easy to understand at a glance. 【Long-lasting continuous use & excellent fit】 ...A cordless type with a built-in 5000mAh large-capacity battery, so there's no need for bulky external batteries! It supports quick charging with "USB Type-C," so you can use it conveniently without worrying about the direction. It can be used for up to 2 hours if the airflow and cooling modes are running simultaneously, and up to 10 hours in fan mode only, so you can use it with peace of mind even if you're outdoors all day. 【Lightweight and compact & heatstroke prevention】 ...It's easy to cool down hot skin, so we recommend using it in airflow + cooling mode outdoors when the temperature exceeds 30℃! You'll feel cooler than with natural wind. Even after using it for more than an hour in "strong" airflow and cooling mode ON, the main unit didn't get hot, and the cooling plate remained cold, which helps prevent heatstroke. 【Skin-friendly silicone material & excellent stability & bladeless type】 ...Skin-friendly silicone material with flexibility is used on the back of the neck, making it easy to wear. It's lighter than conventional ABS resin and designed so that it doesn't put a burden on your body even after long hours of use. - Model: Peltier cooling neck cooler - Cooling method: Water-cooled - Battery capacity: 5000mAh - Size: 175.5mm x 66mm x 18.7mm - Output: 5W - Power supply: DC 5V *(With USB-C cable)