ULTRA LIGHTWEIGHT, 4K PRO, FANTECH HELIOS II XD3V3 GREY GAMING MOUSE Real Wireless 4K Polling Rate: Exceptionally low click and motion latency. Premium Tactile Gold Optical Switches: Quick, robust, and fully tactile. Ultra-lightweight at 55g: With the included dot skates, it drops to 53g. DPI range: 400–26,000. Strike speed for connectivity BT, Wired, and Wireless Rate of Polling: Up to 4,000 Click here for additional information. ULTRA LIGHTWEIGHT, 4K PRO, FANTECH HELIOS II XD3V3 GREY GAMING MOUSE 55g Ultra Lightweight rethinks the idea behind expensive gaming mice. A distinctive, incredibly light design that minimizes wrist fatigue and guarantees optimal performance. Ideal for intense first-person shooter games and more! Fan Favorite Pro Shape HELIOS II Pro was created based on extensive input from pro and enthusiast gamers regarding