Product Number CK-721-SKTM1-US English Keyboard Switch Type TTC Mechanical Switch (Brown) Keyboard Keycaps ABS Painting & Laser Engraved, OEM Profile Keyboard Material Aluminum, Plastic Keyboard Color Silver White Keyboard LED Color RGB, 16.7 million colors Keyboard Polling Rate 1000Hz (Wired/2.4GHz Mode), 125Hz (Bluetooth Mode) Keyboard Response Time 1ms (Wired/2.4GHz Mode), 8ms (Bluetooth Mode) On-the-fly System Yes Keyboard Multimedia Key Through Function Key (FN) Connectivity Wired, 2.4 GHz, Bluetooth 5.1 Charging Support Wired charging Battery 2000mAh Battery Life 73hrs (LED Off) Compatible OS Windows 8+, Mac OS X 10.10+, Android, iOS Software Support Cooler Master MasterPlus+ Keyboard Cable 1.8m, USB Type C to Type A, Detachable & Braided Wrist rest Cloth/SBR, 334 x 95 x 18 mm Keyboard Dimensions (L x W x H) Standard: 334 x 118 x 37 mm, With 1st stage feet open: 334 x 118 x 43 mm, With 2nd stage feet open: 334 x 118 x 46 mm Keyboard Weight 764g (without Cable & Dongle) Product Keyboard