This gaming backlit keyboard is designed for game playing‎.‎ Backlight of 3 colors is full of personality‎.‎ Big keys and heavy weight make gaming operations more easy‎.‎ High‎-quality workmanship and exquisite detail‎,‎ all for bringing user joyful gaming experience‎.‎ Features‎:‎ Backlit design‎,‎ cool and full of personality‎.‎ Adjustable backlit of 3 colors and adjustable brightness of 3 levels‎,‎ more choices‎,‎ more flexible‎.‎ Big keys，curved caps‎,‎ perfect to fit fingers‎.‎ Anti‎-slip patches provide strong adsorption capacity，effectively avoid moving when playing game‎.‎ Heavy and ergonomics design‎,‎ all bring player joyful gaming experience‎.‎ Specifications‎:‎ Backlit color‎:‎ Red‎,‎ purple and blue Key life‎:‎ ≤10 million times Working current‎:‎ ≤350mA Working voltage‎:‎ 5V DC ± 0.5V Support system‎:‎ For Win7 / 8 / Vista / XP / 2000‎,‎ for OSX 10.2 Color‎:‎ Black Material‎:‎ ABS Keyboard size‎:‎ 47.5 * 18.5 * 2.0cm / 18.7 * 7.3 * 0.8in ‎(‎L * W * H‎)‎ Keyboard weight‎:‎ 616.0g /1.4Lb Package size‎:‎ 52.8 * 19.0 * 3.5cm / 20.8 * 7.5 * 1.4in ‎(‎L * W * H‎)‎ Package weight‎:‎ 803.0g / 1.8Lb User tip‎:‎ 1‎.‎ There are 3 adjustable backlighting colors ‎(‎blue‎,‎ purple and red‎)‎‎.‎ Press FN + SL to switch the colors‎.‎ 2‎.‎ There are 3 adjustable brightness levels ‎(‎33%‎,‎ 66% and 100%‎)‎‎.‎ Press FN + ↑or FN +↓to adjust it‎.‎ Package list‎:‎ 1 * KeyboarD 1 * User manual ‎(‎English‎)‎