These great keyboard and mouse kits are ideal for those looking to brighten up their desks, with a responsive feel and RGB lighting you can blast your enemies and see what you are doing at the same times. Please note: These are made to a American U.S. layout, some symbols are not where they are placed on a UK layout. Specifications: 1. Model: G21B keyboard and mouse set 2. Interface: USB 3. Connection method: wired 4. Number of keys: standard 104 keys 5. System environment: Win XP/7/8/10, MAC 10.2 and above 6. Keyboard size: 440x127x30mm (17.3x5x1.2") 7. Button Service Life: about 10 million times 8. Mouse size: 126x70x33mm (5x2.8x1.3") 9. Color: Black/ White 10. Character craft: black UV characters/white laser engraving characters 11. Mouse cord length: 1.3m 12. Keyboard cable length: 1.4m Features: The keyboard: 1. Suspension style key caps, dustproof, and easy to take down to clean thoroughly for longer work time. 2. The transmission line is equipped with anti-interference magnet ring for better operation. 3. Rainbow Color Backlight effects: bringing cool gaming experience, in particular increase gaming keys backlit effect and easy type in the dark. The mouse: 1. The smooth roller with anti-skid scale grain ensures you to operate comfortably. 2. The buttons structure adopt precursor type streamline design provides excellent click sense. 3. Ergonomic design: perfect size fits naturally in your hand and provides comfortable touchfeeling. Package Includes： 1 x Keyboard 1 x Mouse Notice: 1. Please allow 1-2cm error due to manual measurement.Please make sure you do not mind before you bid. 2. The colors may have different as the difference display,please understand.