G2T Cooling and Heating Dual Function Smart Wearable Air Conditioner Neck Cooler Neck Heater Used once, then stored away. The charging cable has some discoloration. The outer box doesn't close quite right. Size: L~XL (Neck circumference 29.9cm~53.6cm) Color: Black A wearable electric scarf with heating and cooling functions. - Model Name: G2T - Function: Heating and Cooling - Included: Storage bag, USB cable, instruction manual Thank you for looking.