Please ensure that the most up to date firmware is installed using SteelSeries Engine Year-long battery life for over 400+ hours of uninterrupted use with revolutionary power-efficient technology Optimized for ultra-low latency wired-like performance with the flexibility of two types of connectivity: 2.4 GHz and Bluetooth Multi-purpose functionality perfect for switching between gaming, school, work, travel, limited USB space, and more TrueMove Air Optical Gaming Sensor for best-in-class optimized performance in both wireless modes Smart and durable construction includes dongle compartment and 60 million click mechanical switches (6X the standard).
