Keychron K3 Ultra-Slim Wireless Mechanical Hot-Swappable Keyboard - Version 2 Power: 1550mAh Rechargeable li-polymer battery Working Time: Up to 34 hours (Lab test result may vary by actual use) Package Included: 1 x Keychron K3 Keyboard1 x Windows Keycaps1 x USB-A to USB Type-C Cable1 x Keycap Puller, 1 x Switch Puller1 x User Manual Bluetooth Mechanical Keyboard Keychron K3 is a 75% layout (84-keys) RGB backlit compact Bluetooth mechanical keyboard. The redesigned low profile switch is 40% slimmer than conventional switches. It allows users access to all the essential multimedia and function keys, but with a smaller footprint. Compatible with Windows. It connects with up to 3 devices. Low Profile Keychron Optical RedSwich (Hot-Swappable) With the MX-styled stem housing and 0.2ms ultra-low latency, the low profile Keychron Optical switches are crafted for typists or gamers who want to type at lightning speed with a 70 million lifespan much greater than industry standards. 84 Key-75% LAYOUT Crafted for productivity, the K3’s 75% layout is a compact version of tenkeyless layout. It allows users access to all the essential multimedia and function keys, but with a smaller footprint. Wireless and Wired Dual Modes Connects with up to 3 devices via Bluetooth and switch among them easily, best fits home, office use while connecting with your smartphone, laptop and iPad. You can choose USB type-c wired mode for constant power supply. Suitable for All Devices Designed with Mac users in mind, with a unique Mac layout, K3 has all necessary Mac function keys, while compatible with Windows. Just plug and use, no driver is needed. Extra keycaps for both Windows and Mac operating system are included. ULTRA-SLIM 22mm The redesigned low profile switch is 40% slimmer than conventional switches. Together with the streamlined aluminum body makes the K3 one of the thinnest and lightweight wireless mechanical keyboards. 18+ RGB Lighting Options Comes with various RGB backlight settings, you can adjust the keyboard brightness to sync with your mood. Helps to stay focus in dime environment with style, you can also choose other static color backlight mode. Ergonomic Design Two level adjustable rubber feet makes the new K3 more comfortable to type on. A newly Reinforced body structure. K6 Hot Swappable K4 K10 Hot Swappable K2 K8 Hot Swappable K3 Hot Swappable YES NO NO NO YES NO Layout 65% 68 Key 96% 100 Key 10% 104 Key 75% 84 Key 75% 87 Key 75% 84 Key Available Switch Type Gateron Red/Blue/Brown Switch Gateron Red/Blue/Brown Switch Gateron Red/Blue/Brown Switch Gateron Red/Blue/Brown Switch Gateron Red/Blue/Brown Switch Gateron Red/Blue/Brown Switch Dimension 317 x 107 x 37mm 376 x 129 x 38mm 440 x 129 x 40 mm 317 x 129 x 38.5mm 359 x 127mm X front 35mm/rear 42mm 306 x 116 x 17mm Frame Aluminium Aluminium Aluminium Aluminium Aluminium ABS+Aluminium Backlight RGB RGB RGB RGB RGB RGB