【2-Layer, 26 programmable keys】Can be programmed up until 30 character limit per key. Layer 1 (Mode 0) is Numpad mode with four programmed keys; Layer 2 (Mode 1) is programmed mode in which all keys are programmable except the “Enter” key. The asynchronous number-lock function operates independently and does not affect the 10-key on the main keyboard | 【With Onboard Memory and Pause Function (WrTime)】Onboard memory can retain the programmed macros and moved to a different Windows/ Linux based computer without the software installed; Pause function Supports 0.1 sec to 10 sec delays between keystrokes, and can hold the next action a certain time when programming a series of actions | 【Save Time and Boost Productivity】Specially designed for users who need specified macros to execute repetitive keystrokes and texts such as graphic designers, architects, webmasters, and accountants. 22 relegendable transparent keycaps can be lifted up for users to create their own labels for custom keys (Keycap puller included) | Notes: 1. Not recommended for gaming. 2. For Windows OS only; do not support macOS. Even after setting up on a PC, it will not work on Mac. 3. The programmed key cannot auto-repeat when pressed. 4. Must be connected directly to PC via the USB cable when programming. (USB HUB may not be supported.) 5. Only work with drivers downloaded from our website. | Made in Taiwan/ Compatible with windows XP, Vista, 7, 8, 10./ Cable length: 4.8 ft./ Product dimensions: 6.14” (L) x 3.58” (W) x 1” (D)