Review on Uogic Pen for Microsoft Surface – Slim, Lightweight, & High Sensitivity: Ideal for Surface Pro/Go/Book/Studio/Laptop by Jeffrey Johnston

The advertisement says one charge up to several hours of use, but it really makes me disappointed. After fully charged, it is used less than 5 hours and I cannot charge the pen. I contact customer support email address. After about 3 days of waiting for an answer, I have to return the product and get another one for my daily work. Customer service is very unprofessional.