Neck cooler with cooling and heating functions. USB Type-C charging compatible. Cools or warms the neck, usable in both summer and winter Neck cooler & warmer - Brand: RIAIR - Model Name: RANC-W261(UW) - Functions: Cooling and heating - USB Type: Type-C - Size: Adjustable - Power Source: Battery-powered - Usage Time: Approximately 3 hours - Weight: Approximately 230g ✔ Quick cooling and heating with the Peltier effect: ✔ Rechargeable, so it can be used on the go ✔ Easy-to-understand mode and temperature display with LED ✔ With LED illumination function ✔ Neck rest made of silicone rubber, so it's less likely to hurt New, unused item. Thank you for viewing.