Onekey operation camera pen Portable security camera pen has onekey operation no need to install applications just press the button on the top of the pen cap to easily record video take photos with all functions Copy and browse files can be connected to a computer via a micro USB card reader Camera pen has a builtin 240 mAh highperformance polymer lithium battery which can satisfy up to 85 minutes of continuous recording at one time It also supports the function of recording while charging recording longer Security camera writable pen can be used in various occasions to help you record important moments whether in meetings work or study It is also possible to shoot video and Audio at the same time as normal writing