Features: 1.Compatibility: Mechanical keyboard suitable for Windows, for OS X, for Android, for IOS, bringing you a professional and excellent use experience. 2.Backlight Modes: Wireless bluetooth keyboard has 21 backlight modes and 4 side light modes, you can choose dynamic or static light modes according to your preference. 3.3 Modes: Mechanical keyboard offers multiple connectivity options, including 2.4G wireless mode, Bluetooth 5.0 and USB C wired mode, allowing you to connect and easily switch between up to four devices simultaneously. 4.PBT Keycaps: Keycaps made of highly durable PBT plastic with advanced thermal sublimation coloring technology for less wear and tear, practical and stable. 5.Professional Design: Mechanical keyboard with 75% layout (84 keys), advanced design makes you more comfortable and faster when typing and using. specification:Item Type: Mechanical Keyboard Material: ABS Built in Battery: Lithium battery 1850mah Connectivity: 2.4G wireless, Bluetooth 5.0, Wired Type C Key Number: 84 keys Keyboard Light Effect: 16.8 million RGB Switch Base: Low switch welding switch Switch: Mechanical red switch Battery Type: 1850mAh lithium ion battery (with built in battery) Compatible System: Suitable for Windows, for OS X, for Android, for IOS PackageList:1 x Keyboard 1 x 2.4G Receiver 1 x Power Cord 1 x Key Puller 1 x User Manual