Model: G21B keyboard and mouse set Interface: USB Connection mode: wired Number of keys: standard 104 keys System environment: Win XP/7/8/10,MAC10.2 or above Keyboard size: L440xW127 H30mm Keyboard life is about 10 million times. Mouse Size: L126xW70xH33mm Character technology: black U character/ laser character Product version : color square key cool version white mouse Black square key cool version black mouse Specifications: 1. non-slip roller anti-skid roller, quick response, accurate click The mouse interface is SB interface, plug and play without driver 2. -button control, cool backlight Easily click on the light label key, keyboard glare, late night running glare charming Add passion and challenge to the game. 3. Laser engraving character wear-resistant The key characters adopt laser engraving technology, which is clear and vivid, durable and wear-resistant. It feels comfortable to use for a long time. 4. The four keys up, down, left and right are designed with game-level icons. The keyboard characters are -definition and wear-resistant. The surface technology (black keyboard U/white keyboard laser engraving) is not easy to fade after long-term use. 5. Concise/Quiet/Comfortable Suitable for home, business office, games, etc. The office keyboard and mouse suit everyone wants. Package Included: 1 * mouse, 1 * keyboard