Welcome to our store! 16 Keys & 3 Rotary Knobs: This customizable keyboard features 16 keys and 3 rotary knobs. Program all key functions and shortcuts to boost work and gaming efficiency. Blue Switch: Ideal for office, gaming, music, media, industrial control, laboratory, and production line testing. The blue switch provides tactile feedback. Multifunctional: Perfect for office use (shortcuts for copy/paste, volume control, etc.) and gaming (programmable keys for smoother gameplay). Interchangeable: Swap keycaps or switches easily for personalized comfort and customization. Separate Design: Features a detachable 1-meter/3.3-foot USB cable for convenient and flexible placement. Item Type: Programmable Keyboard Material: Acrylic Connection: Wired (detachable) Cable Length: Approx. 1 meter/3.3 feet (manual measurement, slight errors may occur) Package Includes: 1 x Programmable Keyboard 1 x USB Cable 1 x USB Flash Drive 1 x Instruction Manual If you encounter any product issues after receiving your order (damage, incorrect quantity, etc.), please contact the seller immediately. We strive to provide excellent customer service.