Razer Naga Pro Wireless Gaming Mouse, Up to 150 Hours battery life, Razer Chroma RGB, Optical sensor, 20,000 DPI, Speedflex Cable, 3 Swappable Side Plates, Up to 19+1 Programmable Buttons
Amazon.com: Battery Replacement for Mamba RC30-013601 Naga Epic Chroma CP-RC30B : Toys & Games
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Razer Naga Pro Wireless Gaming Mouse, Up to 150 Hours battery life, Razer Chroma RGB, Optical sensor, 20,000 DPI, Speedflex Cable, 3 Swappable Side Plates, Up to 19+1 Programmable Buttons