This neck cooler provides an instant cooling sensation of -16°C when worn around the neck, and is USB rechargeable with 3-level wind speed adjustment. ⚠️ There is a hole in the box. The "2025 Summer Innovative Neck-Hanging Fan" is the perfect item to beat the summer heat, with the 2024 Summer Innovative "Instant Cooling Neck Fan" now available. Utilizing cooling technology also used in refrigerators, the cooling plate can cool down to a maximum of -20°C below the outside temperature. The design provides three-dimensional cooling to the neck, face, and back of the head. It is especially ideal for scorching summer days and long outdoor trips. It's also great for walks in the park, outdoor festivals, and even commuting to work or school. "3-Level Wind Speed Adjustment & 2-Level Cooling Mode" As a portable fan, the wind speed can be adjusted in 3 levels, and the cooling mode can be set in 2 levels. When the wind is weak and not enough, you can instantly cool down with the strong wind mode. Also, you can use only the cooling plate or only the fan, allowing you to use it optimally according to the temperature and environment. For example, you can use only the cooling plate indoors where the air conditioner is working, and use both the fan and cooling plate simultaneously during outdoor events to experience the ultimate coolness. "15 Hours Continuous Operation & 5200mAh Large Capacity Battery" This neck cooler is equipped with a 5200mAh large capacity battery, allowing for up to 15 hours of use with the fan only, up to 6 hours with the cooling plate only, and up to 3 hours with both. This allows you to use it with peace of mind even when you are out all day. For example, you don't have to worry about running out of battery during long outdoor activities such as fishing, camping, or hiking. It is USB Type-C rechargeable, so you can easily charge it anywhere. - Model: Neck Cooler - Cooling Function: Cooling Plate + Fan - Modes: 2-Level Cooling Mode - Temperature: -16°C Instant Cooling Sensation - Charging Method: USB Rechargeable - Design: Neck-Hanging Type - Wind Speed Adjustment: 3-Level Wind Speed Adjustment Thank you for viewing.