55g Lightweight Design Efficient mechanical design brings A950pro lightweight on an ergonomic shape (weights only 54g-55g). Good fitting to right hand provides conform even after longtime gaming. Al-Mg Alloy As a new type of metal material, Al-Mg alloy gives a feeling of fashion high-tech. A950 Pro Al-mg ver. applies it on buttons and top cover, which not only achieves better hardness but also lighter weight. Tri-mode Connection Tri-mode connection (USB, 2.4G & Bluetooth) supports wide ranges of mobile devices in both Win/Mac system, switching among different scenarios becomes easy. Kailh GM8.0 Black Mamba Switch GM 8.0 Black Mamba switch, matched with Al-Mg alloy button, provides clean and crispy clicking feelings. 300mAh – Quick Charge A single 30min charge gives you 90% juice and battery enters Battery Protection mode. Full charge takes 40min. User can also use mouse to play games during charging time without worrying about battery power.(Note: Please use original paracord cable and charge A950 Pro Al-Mg ver. on PC. Not recommended to use plug for charging for better battery protection. ) P3395 High-performance Optical Sensor PAW 3395 gaming sensor provides precise tracking with stable performance, even in full-speed performance it still provides extremely good control. Wheel with Oracle Bone Script Oracle bone script indicates deep cultural development in ancient China. Unique Anti-slip Sticker Anti-slip stickers enhances mouse using feelings, users could better enjoy with easy control and good handling. Wireless 4000Hz Reporting Rate Up to 4000Hz reporting rate brings fast transimission speed at 0.25ms for smooth and precise performance.