Keyboard Switch Type TTC Low Profile Mechanical Switch RedKeyboard Keycaps Ergonomic keycapKeyboard Material Aluminum, PlasticKeyboard Color BlackKeyboard LED Color RGBKeyboard Polling Rate 1000Hz (Wired Mode), 125Hz (Bluetooth Mode)Keyboard MCU 32bit ARM Cortex M0Keyboard On-board Memory 512 KBOn-the-fly System YesMultimedia Keys Through FNCompatible OS Mac OS X 10.10+/iOS 5+/Android 3.2+/Windows 8 and aboveSoftware Support Cooler Master MasterPlus+Wireless Connectivity Bluetooth 4.0Battery 4000mAh (2000mAh × 2)Keyboard Connector Cable USB Type-C (Keyboard Side), USB 2.0 Type A (Computer Side)Keyboard Cable Length 1.8m, Braided & RemovableKeyboard Dimensions (L x W x H) Standard: 293 x 103 x 30.28 mm, Feet Open: 293 x 103 x 43.03 mmKeyboard Weight 446g