For a long time, I wanted to buy a small keyboard for my mobile phone, because it is not very easy to input text with a single finger. Sometimes I use ssh to connect to my server and use Vim to modify code, modify configuration or deploy services. I also searched for this product in Shenzhen Huaqiangbei, but I didn’t find a satisfactory one. Finally, I found a Japanese-designed pocket keyboard on Taobao. The size meets my requirements and can be put in my pocket, about 100 US$. When I got it, it exceeded my expectations and felt great.