This keyboard features low-profile scissor keys, a number pad, and an optimized layout for Windows. The mouse has high-precision optical tracking and a mechanical scroll wheel. The product includes a plug-and-play USB nano receiver for a strong and reliable 2.4 GHz wireless connection with a range of 10 meters (33ft). The price drops from $39.97 to just $25.81. Shipping is free for over $35 or adds $6.99.