15Key Mechanical Macro Keyboard with 3 Clickable Knobs This compact programmable keyboard offers precise mechanical input and versatile control in a small footprint. Built with acrylic and PCB materials and dustproofing blue switches, it delivers durable tactile feedback and long key life for office, creative, and industrial workflows. Key benefits Save time with onetouch macros: assign complex shortcuts and stack up to 18 characters per shortcut for repeated tasks and multistep commands. Fast system control with tactile knobs: three clickable knobs can be configured for volume, track control, zoom, play and pause, previous and next, or mapped as left and right mouse buttons. Flexible connectivity: automatic switching between Bluetooth and USB modes lets you use the keyboard wirelessly or wired without manual reconfiguration. Bluetooth enters sleep after 15 minutes of inactivity to conserve power. Ready to use: Type C to USB plug and play setup with no driver conflicts between multiple keyboards. RGB lighting with adjustable color options enhances visibility and workflow cues. Reliable performance: built in 1000mAh battery, key life up to 50 million actuations, and a delay function up to 6000 milliseconds to sequence commands precisely. Features 15 programmable mechanical keys with storage function for saved layouts Three adjustment knobs with click function, assignable to many controls including mouse buttons Shortcut overlay supports up to 18 characters Two connection modes: Bluetooth and USB, automatic switching, Bluetooth sleep after 15 minutes idle Type C to USB interface, plug and play RGB adjustable lighting Delay timing up to 6000 ms to chain commands or add pauses between actions Durable build: acrylic and PCB construction Dustproofing blue switch type Battery: 1000mAh lithium battery built in Size: approximately 185 x 77 x 39 mm Operating voltage: DC 5V 1A Operating temperature: 10 C to 50 C Key lifespan: up to 50 million presses System compatibility: Vista, Linux, OS X, and other systems that support standard USB protocol Practical use scenarios Office productivity: program copy and paste, text expansion, and application shortcuts with a single key press. Use the delay function to ensure command sequences execute reliably across different software. Creative workflows and streaming: control audio levels, media playback, and timeline zoom with the knobs while triggering frequently used editing commands from the keys. Industrial testing and control: compact, programmable interface for production line testing, laboratory setups, or industrial control panels where reliable, repeatable input is required. Package contents 1 x Mechanical keyboard 1 x USB cable 1 x Manual This keyboard is a compact, durable solution for users who need programmable shortcuts, precise media and system control, and flexible wired or wireless connectivity.