The computer mouse is an entire desktop computer in mouse form that uses the raspberry pi zero W as its brain. You can literally surf the internet with only this mouse. It is a small mini computer without a trackball and not using a gaming mouse. 

My 3D printer: https://www.amazon.com/gp/product/B092MCV432/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B092MCV432&linkCode=as2&tag=4200cd-20&linkId=0751d6096bb696c4d7ec96177457cdb2

Parts:

Raspberry Pi Zero W: https://goo.gl/V9WVvS

Rii Bluetooth Mini Keyboard: https://goo.gl/9n2TB7 

Small Wired Mouse (Sensor and motherboard taken from this): https://bit.ly/2QIGlmz

Lipo charger: https://www.adafruit.com/product/1904 

Battery: 500mah https://www.adafruit.com/product/1578 

1.5" Color OLED LCD: https://www.adafruit.com/product/1431  

Standard Computer Mouse (Scroll wheel and buttons taken from this): https://www.ebay.com/itm/172482168842 

Disclaimer: Many of the parts used in this project were provided by BangGood.com

Thanks for checking out my video!