The AlphaCool Wearable 3-Zone Neck Cooler and Heater provides portable temperature control designed to help your body stay comfortable in changing conditions. Worn comfortably around the neck, it delivers targeted heating or cooling directly where it&';s most effective. Built with advanced semiconductor refrigeration technology, the device features cooling and heating plates positioned on the back and sides of the neck for efficient, direct temperature transfer. Dual heating and cooling modes let you quickly adjust to warm or cold environments, while the flexible neckband ensures a secure, comfortable fit. With simple touch-button controls, three fan speed settings, and an LED display for status updates, the AlphaCool Neck Cooler Heater is easy to use throughout the day. A built-in rechargeable battery delivers up to 8 hours of runtime, making it ideal for outdoor use, work, travel, or everyday temperature management. Key Features: Dual heating and cooling modes Advanced semiconductor cooling and heating plates 3-zone temperature control around the neck Up to 8 hours of runtime Built-in 8000mAh rechargeable battery Touch-button control with LED display 3 fan speed settings Comfortable, flexible neckband USB-C charging What&';s Included:(1) Wearable 3-Zone Neck Cooler & Heater(1) USB-C Charging Cable(1) Instruction Manual Specifications Battery Capacity: 8000mAh Max Runtime: Up to 8 hours Charging:USB-C