Features: --Easy to Operate. USB plug and play, no driver needed. Anti-skiddesign. ABS material, etched, non slip design, splash proof and durable.  --Adjustable Backlit Brightness. Cool LED backlighting on keyboard and mouse, 3 colour changeable breathing or permanent lighting mode.  You can adjust backlit and breathing mode whatever you are playing game or working.  --Ergonomic design, comfortable feel, not tired. The suspended keycap keyboard and skin-friendly surface mouse provides a comfortable games and typing experience for long time.     Specification: Color: Black / Blue / White.  Material: ABS.  Connection Method: Wireless.  Interface Type: USB.  Number of keys: 61.  Photoelectric resolution: 2400dpi.  Weight of a set with box: about 830g.  Keyboard size: about 30.5 * 11cm.  Mouse size: about 13.68*7.76*5.23cm.  Backlight effect: RGB Multiple Backlight.     Package Included: 1 x Keyboard.  1 x Mouse.     Notes: 1. Due to manual measurement, please allow a difference of 0.5-1cm.  2. Due to the difference in light and screen, the color of the product may be slightly different from the picture. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.