Features: with 1.5M USB cable, driver free, plug-play, easy to use. Multi-color RGB lighting effects make your keyboard unique and easy to switch to meet your needs .Adopt high quality PBT- keycaps design, sensitive typing, reduce errors and feel comfortable. Dye-sub keycaps and large character spacing improve speed and accuracy, and are easy to locate and press the number you want to find. Applicable: Suitable for notebook computer users, checkout- counters, banks-, stock exchanges, etc. Specifications: Type: USB Wired Application: Financial Accounting Cash Register Laptop Language: English Operation Style: Mechanical Style: Numeric Keyboard Backlit : Yes Switch:Matcha Green Axis/Twilight- Green Axis/Black Green Axis Material: PBT- Color:As Pictures Number of keys: 21 Wire length:approx 1.5m/4.92ft Product weight: 250g Product size:approx12.5x18x4.5cm/4.92x7.09x1.77in Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PCxNumeric Keypad 1PCx Charging-Cable 1PCx User Manual