Amazon.com: Logitech G502 Lightspeed Wireless Gaming Mouse, 25K Hero Gaming Sensor, 25600 DPI, RGB, Ultra-Light, 11 Programmable Buttons, Long Life Battery, PowerPlay-Compatible, PC - Black : Video Games
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G502 lightspeed battery upgrade, new Vs old, 900mah Vs 240mah : r/G502MasterRace