??????????? 15??????????? ????? ?? ????????? 1.????2.????.3.????.4.????. ??????????? ????.?????.????.??. ??????????????? ????? ???? ????????? ?????????? ??????? ?????????? ????????? ???????? ?????????…… ??????? The new second-generation upgraded cooling and heating principle?the intelligent controls the temperature?and the aviation aluminum-grade thermal conductive sheet?which has a stronger heating and cooling performance?allowing the whole body to feel warm and cold. The cold feeling penetratesinto the bottom of the skin Can effectively cool down10-15 degrees Cooling through the peltier?It can reach deep skin in 2 seconds.Cool down in a short time? cool for a summer. Warmth when you turn it onRapid warming up Powerful and rapid heat Adopt second-generation heating technologyMore powerful heating technology? fast heatingin 3 seconds? the temperature follows the aorticblood flow throughout the body?as if being wrapped in warm air. Six-speed adjustment to meet your different needs Cold in summer? warm in winter. Almost no noise Based on design principle?Avoid the whirring noise caused by the internal motor?fan s and air duct of the traditional hanging neck fanA heating and cooling device that can be used in meetingsNot disturbing is the best company. Enlarge the area of the hot compress? real-time temperaturecontrol in every second The product is equipped with two highly sensitive detectors? which can intelligently controlthe temperature at the user-adjusted degree andmaintain a constant temperature. U-shaped ring neckperfect fit elastic plastic + silicone material The silicone part of the hanging neck is made of elastic plastic + silicone.The soft and adjustable angle makes the product suitable for more different people.At the same time have an excellent wearing feeling. ??neckand????????????? ???? ???????????????????????;??????????????????????.????????????? ???????????? ?2600mAh????????? ?????????? ??????????????????????. ?????…… ???RGB????? ??????????????????????. ???????? ???????? LED??:?????????.?????????.TYPE-C???????. Shipping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). Special Announcement:Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .ReturnIf the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.