BTC 5545URF Wireless Keyboard & Optical Mouse Kit (Black/Silver) BTC Wireless Keyboard Wireless 3-Button Optical Scroll Mouse Kit General Features: Color: Silver/Black Wireless 2.4 GHz RF Technology USB receiver Keyboard Features: 101 key - Supports Windows 98SE/Me/2000/XP/Vista 2.4 GHz RF Technology Operating Distance: 39.37 feet (12 meters), approximate Twelve (12) Hot Keys for Instant Internet and MultiMedia Functions Long-life tactile-feedback comfortable key switches for faster silent typing