Pulsar X2H

“Okay, lets break it down. Their entire lineup is built on the X moniker being anything they make mouse wise. Every new refresh/revision is marked by a V#. * Xlite is their ergonomic mice, they're Zowie EC shaped, your traditional ergonomic mice * X2 is their classic ambidextrous shaped mouse, the XA, XH are sub variants * The X2A is a fully ambidextrous version of the mouse with side buttons on both the left and right * The X2H is a version of the X2 shape with an especially high back hump for aggressive claw users * The X3 is their new asymmetric shape The ES marker stands for E-Sports collection, it goes with any of their gear that is designed to work without any software, all configuration can be done on the device itself. They're usually slightly heavier, but a little more premium and feature a screen at the bottom of the mouse to all things settings. As for the refreshed versions, many of them come with different internal structure changes, the most fundamental parts are the sensors and switches being changed, but there are also some structural issues that get changed moving from one generation to another. You'll have to look at reviews for those. For alternatives, if you're deadset on the EC styled shape, there's the Razer DAv3 hyperspeed for a smaller mouse as it seems you're looking for a smaller ergo. However, having you hand size would be much more helpful when determining what would suit you. If you have a mouse you already like the shape of, chances are you can visit [eloshapes.com](http://eloshapes.com) to find a mouse with a similar shape. It's also a good tool in general when mouse shopping.”