TRI-MODE CONNECTIVITY & 3000MAH BATTERY: SKY81 75% custom keyboard supports 3 connection modes: stable wired, ultra-sensitive BT5.0 and hassle-free wireless 2.4G, allowing up to 5 devices to be connected at the same time. The toggle switch on the side of the keyboard can switch the connection mode for easy and quick response. SKY81 has a built-in 3000 mAh battery, which can last for about 15 hours when used with the light on. You can check the battery level at any time by pressing FN + Backspace. GASKET-MOUNTED STRUCTURE: Unlike the traditional screw fixed structure, the positioning plate of the SKY81 wireless creamy keyboard is fixed in the middle by the pressure of the upper and lower shells. There are gaskets distributed around the positioning plate to prevent direct contact between the interior and the shells, acting as a cushioning layer and effectively reducing vibration and noise generated when typing. This keyboard feels soft and even, elastic and has pure sound. 5-LAYER SOUND ABSORBING FILLING: In order to improve the noise situation, this gasket keyboard is equipped with a IXPE foam pad, PORON foam, diaphragm, EVA soundproofing foam and silicone absorbing pad in the gaps between the positioning plate, PCB board and bottom. This greatly reduces the resonance space inside the keyboard, thereby suppressing hollow sounds and making every key press comfortable and pleasant. For gamers and office users, this keyboard is a great addition to the desktop. HOT-SWAPPABLE SOCKET & PRE-LUBED CUSTOM SWITCHES: This 75% mechanical keyboard is compatible with 3-pin or 5-pin switches, allowing you to personalize your keyboard. The switches are individually removable and can be replaced in seconds. The SKY81 keyboard utilizes MageGee's finely tuned switches, which are pre-lubricated at the factory and built to last up to 70 million keystrokes for responsive and creamy typing. STUNNING RGB BACKLIGHTING AND WIN/MAC SUPPORT: This creamy mechanical keyboard has 18 backlighting modes, a wide range of light colors, and adjustable backlighting brightness and speed. Bright static and dynamic lights shine in the dark, illuminating your desktop and enhancing the gaming experience. The light can be switched off by pressing FN + DEL to save power. It works on both Mac and Windows systems, so there’s no need to worry about adaptation issues. Reliable multi-device connectivity helps you handle your work more efficiently.