A4 G9-500FS V-TRACK WL USB BLK
Product ID: 66133
Mnfr. Part#: G9-500FS V-TRACK WL USB SILENCE CLIICK BLACK
• Sensors: Optical
• Type: Wireless
• Movement Resolution: 1000 DPI
• Buttons: 4
• Battery: 1AA Alkaline Battery
• System requirements: Windows XP / Vista / 7 / 8 / 8.1 / 10
https://www.a4tech.com/product.aspx?id=196
A4 G9-500FS V-TRACK WL USB BLK
