JOMAA Wired Trackball Keyboard and Mouse – 78 Keys Compact Layout with 19mm Trackball, Scissor Switch Keys, Scroll Lock (Fn Combo), USB Plug & Play for Windows/Mac/iOS/Android (with Backlight)

["Precise Trackball Control Built-in 19mm trackball allows accurate cursor movement without moving the keyboard – ideal for tight workspaces, medical, industrial, or media center use. Helps reduce wrist strain.","78-Key Compact Layout + Scissor Switch Full-function keyboard in a space-saving design. Scissor switch key structure delivers quiet, comfortable typing with tactile feedback – perfect for extended use.","Adjustable Backlight (Backlit Version Only) Backlit model supports 3-level brightness control: press hotkey once to turn on, twice/three times to increase brightness, fourth time to turn off – great for low-light environments.","Wide System Compatibility – Plug & Play Compatible with Windows 2000/XP/7/8/10/11, Mac OS, iOS, and Android. Connects via standard USB port – no driver needed, just plug and use.","Enhanced Productivity Features Supports Fn key combinations for Scroll Lock and other extended functions. Also includes CPI switching for adjustable cursor speed – adapts to your workflow."]