Zowie EC2-CW
Classic ergo shape wireless. Used by CS2 pros.
Specifications
{"DPI":"3200","Sensor":"PAW3370","Weight":"77g","Buttons":"6 programmable buttons","Connection":"Wired (USB-C to USB-A braided cable)","Grip Style":"Palm / Claw","Switch Type":"Optical (rated 70M clicks)","Battery Life":"N/A (Wired)","Connectivity":"Wireless","Polling Rate":"1000Hz","RGB Lighting":"No"}