Neck cooler with a 6000mAh battery, capable of cooling and heating in 1 second. - Battery Capacity: 6000mAh - Cooling Function: Full body cooling - Temperature Adjustment: Switchable between cold and warm - Design: Neck cooler Used a few times. Works perfectly. Not a junk item. Only the main unit, no box. Please understand that this is a used item and is non-refundable and non-returnable (NCNR). If you have any questions, please leave a comment. Thank you for looking.