When you talk about winter, what is in your mind [ATTENTION]: As this heated vest is small than usual vest, we recommend that you buy a larger size. If you have any questions when you buy or receive the heated vest, please contact us in time, we hope to give you a satisfactory shopping experience. [5 heating Zones and 3 Heating Levels]: Heated vest has 5 heating zones with 3 heating levels (red light high = 60 C white light medium = 55 blue light low = 50 ) . Carbon fiber heats up very quickly and you just need to long-press the button for 2-3 seconds then will get you warm within three minutes. You can adjust to the temp according to your needs. polyester Hand Wash Only Fastening: Zipper Collar Style: Band Slim Sleeveless UK-LXB-XS [12000mAh High Battery Capacity ]: With the 12000mAh power bank, the runtime up to 10 hours, it will give you a strong support in cold weather.(Low-temperature: 10 hours medium-temperature: 6.5 hours high-temperature : 4 hours). Note: It is recommended that remove the battery without use. [Lightweight and Adjustable Side Zipper ]: The zippers in the side are adjustable to fit you better. The women's heated body warmer jacket with battery is embellished with a red edge, it adds more vitality for you in chill weather. The stand neck can keep your neck warmer. There is an invisible pocket in the side warming vest that can hold the power bank. [Multifunctional Vest]:Our womens heated clothing not only provide you with warmth, besides, this heated vest for women rechargeable is a nice choice for fishing ,camping, hiking, hunting and so on. And it is convenient in your life such as walking the dog, cycling and running.