Wireless freedom for up to 110 hours, a flagship PixArt PAW3950 sensor, and a lightweight design of just 55g. The Dark Perk unlocks your potential. Sym for symmetrical shape Lightweight for competitive gaming Ultra-long wireless battery life of up to 110 hours Up to 8,000 Hz polling rate, even wireless PixArt PAW3950 sensor with up to 32,000 DPI Fast and precise optical Omron switches for responsive and soft clicks 100% PTFE glide skates with rounded edges for extra-smooth aiming Symmetrical shape Customize your Dark Perk Sym mouse with the be quiet! IO Center software