HAVIT HV-MS732 LED Optical Programmable Gaming Mouse for PC vs Logitech G502

The mouse provides extra 8 pieces of weights (2.4g each) that allow you to make the mouse heavier or lighter

It allows you to set keyboard keys on the mouse, besides general mouse button programming

For $21.99 on Amazon, it offers Avago 3050, programmability, weight tuning set, and LED backlight.

With the press of a button, the scroll wheel will go from regular clicking to smooth free-spinning so that scrolling through long documents or webpages is a breeze.

With the setup utility, the 11 buttons can be mapped to any key sequence. With 3 possible on-board profiles, and even more profiles stored on the computer, you can use a different setup for every program.

If you want to change the weight or balance of the mouse, it comes with several that you can insert in the bottom of the mouse.