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 WiredApplication: Financial Accounting Cash Register Laptop Language: EnglishOperation Style: MechanicalStyle: Numeric KeyboardBacklit : YesSwitch:Matcha Green Axis/Twilight- Green Axis/Black Green AxisMaterial: PBT-Color:As PicturesNumber of keys: 21Wire length:approx 1.5m/4.92ftProduct weight: 250gProduct 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 Keypad1PCx Charging-Cable1PCx User Manual