Yocan UNI is the most popular box mod last year.
Many fans want to find Yocan uni manual, please check it on Yocan's site.
Here is the link: https://www.yocantech.com/yocan-uni-box ... nload.html

UNI Features:
fits easily in your pocket
High protection value for your cartridges,
Micro USB Charging


Any question about Yocan uni manual, please leave a comment below.