Feature: 1. DIY Free Matching: DIY 84 key mechanical keyboard kit, can match any switches and keycaps at will, DIY your favorite keyboard. 2. Switch Hot Swap: Switch hot swap shaft , unique design patent, combined with double layer thick PCB panel, bring longer plug life. 3. Three Mode: Three mode mechanical keyboard supports wireless 2.4G, Bluetooth 3.0, 5.0, Type c wired, support standard height 5 pin shaft and 3 pin shaft. 4. Compatible Systems: Compatible with for Windows2000, for Windows ME, for Windows XP, for Vista, for Win 7, for HarmonyOS, for Win 8, for Win 10, for Android, for IOS Etc Systems. 5. Metal Positioning Plate: ABS one piece shell, strong hardness, metal positioning plate, interlayer sound proof silicone, bottom noise absorbing cotton, is the best choice for your keyboard DIY! Specification: Item Type: 84 Key Mechanical Keyboard DIY Kit Material: ABS Connection Method: Support Wireless 2.4G, Bluetooth 3.0, 5.0, Type C Wired Lighting: RGB Multiple Lighting Modes Conflict of Keys: No Conflict for All Keys Battery Capacity: Built in 1500mah Lithium Battery (Included) Ergonomics: Support Working Voltage: 5V DC Working Current: 300mA (Maximum) Standby Current: 0.5mA Hot Swap Base: Support Standard Height 5 Pin Shaft and 3 Pin Shaft Compatible System: For Windows2000, for Windows ME, for Windows XP, for Vista, for Win 7, for HarmonyOS, for Win 8, for Win 10, for Android, for IOS etc Systems. Package List: 1 x Mechanical Keyboard Kit1 x USB Power Supply Cable1 x Adapter1 x Key Puller1 x Shaft Puller Note: When installing the switch, please check if the switch pins are bent. The hot swappable shaft holder needs to be inserted vertically during installation. The keyboard does not support wired connection via USB, so the keyboard itself does not contain a USB port. The keyboard keycap layout is 65% layout, please select the keycap that supports 65% layout when choosing the keycap! (The product does not come with shaft body, you need to prepare it by yourself)