Ultra-light: Weighing just 85 grams, the GM51 Lightweight Wireless is perfect for competitive play, allowing gamers to effortlessly move and aim with agility and accuracy. A PixArt PAW-3395 optical sensor provides up to 26,000 DPI, 650IPS, and 50G acceleration to deliver extremely precise tracking. Three Modes of Connectivity: Pick and choose between bluetooth, wired, or MSI SwiftSpeed 2.4G connection for ultimate flexibility on the go. MSI Diamond LightGrips: A patented dual injection allows RGB lighting to shine through on the soft and durable rubber grips Charging Capabilities: Charge with MSI's fast charging solution MSI Snap Charging or with the included Charging Dock. Enjoy up to 150 hours of battery life on a full charge.