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 Review - RTINGS.com
Corsair Katar Pro Wireless PC Gaming Mouse - Lightweight FPS/MOBA Slipstream Wireless or Bluetooth Connectivity - Walmart.com
Corsair KATAR PRO Wireless Gaming Mouse - us.MaxGaming.com
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Corsair Katar Pro In-Depth Review : r/MouseReview
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Amazon.com: Corsair Katar Pro XT Ultra-Light Gaming Mouse- 18k DPI PixArt Optical Sensor- RGB Scroll Wheel Lighting- 6 Programmable Buttons- Lightweight Paracord Cable : Video Games