Why or where would I need this When giving lectures along with a presentation. since it is a comprehensive computer controller and pointer When your laptop is on your lap, you're laying down or in a position you can't use a mouse in tight spaces when you don't have space for a mouse. To relieve or prevent Carpal Tunnel syndrome For the disabled. For those missing finger digit(s) Supporting Platforms Windows 8, 10 and higher, Mac OS 10.08 and higher, iOS 13 and higher, iPad OS, Android 5.0 and higher. For iPhone, please turn on Assistive Touch to turn on the cursor on the iOS and iPad OS and check off Show Touches to turn on the cursor on the Android. Optical Sensing The optical sensor allows smooth movements of the cursor. Bluetooth Support Bluetooth Enabled Devices 4.0 allows you to wirelessly use the mouse anytime and anywhere. Ergonomic Design. The curved design of the mouse easily fits fingers which reduces strains on the wrists when using a regular mouse. Dual Usages It can be used as a mouse and remote control.