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Dual- cooling and heating battery life adjustment discount and mute new second-generation upgraded cooling and heating principle,the clever chip controls the temperature,and the aviation aluminum-grade thermal conductive sheet,which has a stronger heating and cooling performance,allowing the whole physique to truly feel warm and cold. Cooling throughout the peltier,It can attain deep pores and skin in 2 seconds down in a quick time, cool for a summer time second-generation heating technologyMore powerful heating technology, prompt heatingin 3 seconds, the temperature follows the aorticblood movement within the course of the body,as if being wrapped in heat air. Based on design principle,Avoid the whirring noise brought on by the interior motor,fan blades and air duct of the ancient placing neck heating and cooling machine that may be utilized in meetingsNot nerve-racking is the finest company. The product is provided with two highly touchy detectors, which may intelligently controlthe temperature on the user-adjusted degree andmaintain a continuing temperature. The silicone a part of the putting neck is made of elastic plastic + silicone mushy and adjustable angle makes the product like minded for more different people an identical time have sporting feeling. Using nice mushy glue,soft and skin-friendly, avoid maximum pores and pores and skin allergies;The skin-friendly materials is comfortable and tough,resistant to grease and dirt,and stays to be as new for long-term wear bib design,suitable for all-round and multi-angle carrying Hanging round your neck,it's as comfortable as a headset, and it is easy to go with you. Dual- cooling and heating , Intelligent constant temperature, Comfortable to wear,Cool lights . Colour: gentle blue Material:ABS Size:17 x 14 x 4cm Package Contents: 1 * air conditioner neck fan Only the above kit content, other merchandise aren't included. Note: Light reflection and various displays can cause the color of the article in the photo a bit of varied from the real thing. The size allowed error is +/- 1-3cm.