All products reach: FCC, CE& UL standard Multi-media ultra-slim keyboards Connector: USB/PS2 12 Multi-media hot keys (power, play, previous, next, my computer, search, internet, e-mail, refurbish, + volume, -volume, Mute) Appearance: Classic, Elegant, Usage: Comfortable, Deft & Mute position Multiple language versions available Keystroke lifetime: Over 10000000 times System requirement: Windows 98/2000/NT/ME/XP/VISTA Working temperature: -20?C-45?C Working humidity: 10%-90% Keystroke pulling power: over1kg Key switch elasticity: 55+/-7g Every keyboard in any color is viable Trademark: victory Model: VKL-220 Productivity: 200000/month Origin: China Packing: OEM Transportation: up to client