I'm selling this because I don't use it. I haven't used it much. 【Cooling Effect】 This neck cooler effectively cools from the neck, allowing you to stay comfortable even on hot summer days. 【Design】 It has a lightweight design that's easy to wear around the neck, making it convenient to carry. It's especially ideal for outdoor use. 【Battery Performance】 Equipped with a 4000mAh battery, it allows for long hours of use. - Connection cable: Multiple black and red cables are tangled - Product name: Neck cooler - Cooling effect: Cooling effect is 3 times better - Battery capacity: 4000mAh - How to use: Design to be worn around the neck - Charging port: Charging port is on the side Thank you for viewing.