YAMAZEN YAMAZEN Peltier Vest Mesh Cooling Mode Heating Mode Expandable Peltier with 10000mAh Battery Standard Included YPLT-FM3 Body Size Wear (Free Size): Chest Approximately 83-108cm, Length Approximately 39-51cm Material Wear Material: Outer Fabric/100% Polyester Product Description ● Free size with adjustable length and width ● Lightweight and strong 3D mesh vest ● Standard equipment: 3 Peltier elements in a set ● With 7 mounting holes, Peltier elements (optional) can be added ● Two battery pockets ● Peltier has two modes: cooling and heating, which can be used depending on the season ● Usable temperature: Approximately 5°C to 40°C ● Cooling Mode Strong: Approximately 3.5 hours / Medium: Approximately 4.5 hours / Weak: Approximately 6 hours / Fluctuation (Strong ⇔ Weak): Approximately 4.5 hours ● Heating Mode Strong: Approximately 13 hours / Weak: Approximately 26 hours *Tested with a 10,000mAh battery *Duration varies depending on usage conditions and environment 【Battery】 ● Battery Capacity: 10,000mAh Thank you.