CORSAIR KATAR PRO WIRELESS GAMING - MOUSE ONLY - PRE-OWNED 840006623816 | eBay
KATAR PRO Wireless Gaming Mouse
More info on the Corsair Katar Pro (Wireless), 69 grams for the wired, 96 for the wireless (Uses AA so could be lighter), 3327 for the wired, 3325 for the wireless (?) : r/MouseReview
Corsair Katar Pro Wireless - The most affordable wireless