【Ergonomic Design】: This pen-type mouse adopts an ergonomic design, which is easier to move and operate than an ordinary mouse and is more suitable for holding. Pen shape, especially suitable for handwriting input. 【Easy to Use】: USB computer pen is the first choice for laptop users. It can be compact, plug-and-play, and requires no drivers. There is a scroll wheel designed for turning pages during PPT presentations. 【Wireless Mouse】: Universal 2.4GHz wireless USB mouse, effective distance up to 10m. The pen mouse has an on/off switch and an optical tracking system. 【Adjustable DPI】: 800/1200/1600dpi adjustable, 4 keys, can help you find the right one “speed”, and also adopts optical tracking system. 【Wide Application】: Suitable for PC smart TV. Support for Windows 7/8 / Vista / XP / 2000 / Android / Linux / OS X systems. It is a gift from teachers, professors, classmates, colleagues, colleagues and friends.