User manual Logitech G502 Lightspeed (English - 213 pages)
Logitech G502 HERO High Performance Gaming Mouse
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Amazon.com: Logitech G502 Lightspeed Wireless Gaming Mouse with Hero 25K Sensor, PowerPlay Compatible, Tunable Weights and Lightsync RGB - Black : Video Games
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Logitech LIGHTSPEED Wireless Gaming Mouse 16,000 DPI LIGHTSYNC RGB Lighting with HERO Sensor and Tunable Weights Gaming Mice - Newegg.com
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