Features: The keyboard is extremely durable to ensure longer service life. Notice:It is not the real mechanical keyboard, but with the great similar work feeling. FN+R keys is volume reduction, FN+T keys is volume increase; There are 5 speeds adjustable; alway bright backlit cannot be adjusted; Installation steps:Plug the USB of keyboard and mouse into the USB of laptop or desktop computer. System will identify the keyboard and mouse and install the driver automatically. After it finished, The keyboard and mouse will work normall; More product function introduction,please read the manual; Specifications: Keycap Material:ABS Color:Black,White,Pink;(Optional) Interface Type:USB Product solutions:SK9708 product type:One-key keyboard Number of keys:61KEY Multimedia:With multimedia Button Life:10million-times or more Operating Voltage:DC5.0V+5% Working Current:150mA (maximum) Product Line Length:Approx.1.7meter/66.93in Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Gaming Keyboard 1x English Manual