Key Features ALL-KEY CHROMATIC CUSTOMISABLE BACKLIT RGB: Able to adjust the brightness and backlit style as you need. FULL SIZE: Full-sized Semi-Mechanical keyboard with 104 keys. 25 ANTI GHOSTING KEYS: Ideal for various games. You can carry out quick operations on music play, volume control and internet browsing. SIX GEARS OF SPEED: Indicator lights will show different light colours according to different DPI, makes your gaming more particular. PROGRAMMABLE: 7 buttons are programmable and macro editing is supported to make it easy to customise your personal configuration for different games. COLOURFUL RANGE: Customisable light effects HIGH PRECISION: Positioning gaming engine helps position accurately and transmit stably. SYSTEM SUPPORTED: Windows2000/XP/Vista/Windows7/Windows8/Windows 10/linux/mac KEYBOARD Specs: Interface Type: USB Size: 450*151*37mm key number: 104 Operating Voltage: 5V Operating Current: 220mA(MAX) Key Life: 10,000,000 times Cable Length: 1600mm MOUSE Specs: Interface Type: USB Size: 130*66*40mm Key number: 7 Resolution: 800-1600-2400-3200-4800-8000DPI Operating Voltage: 5V±10% Key life: 5,000,000 times Cable Length: 1500mm