Keyboard and Mouse: The Logitech® Wireless Combo MK520 puts convenience and control comfortably at your fingertips, thanks to its full-size keyboard with concave keys and hand-friendly, contoured laser mouse. The keyboard’s full-size layout gives you the room you need to type comfortably with all the keys where you expect them to be. Plus, the concave design and softly rounded edges of the whisper-quiet, low-profile Logitech® Incurve keys™ position your fingers properly and invite your fingertips to glide from key to key, hour after hour. Additionally, the palm rest gives your hands the right place to rest when you’re not typing. And you can store your keyboard standing up to free up space on your desk when you’re not using it. Furthermore, the full-size mouse feels good in either hand-even after long hours of use-thanks to its hand-friendly, contoured design with soft rubber side grips. And laser precision means you’ll enjoy smoother tracking on just about any surface so you can say goodbye to the frustrations of basic mice and tricky touch pads. Speaker System: Compact and stylish, X-140 Stereo Speakers from Logitech® delivers audio with enhanced bass for your PC, CD, or MP3 player. Its dynamic, real-time bass equalization enhances bass response while minimizing distortion. Connect your portable MP3 or CD player to the convenient 3.5 mm auxiliary input and customize your audio balance with easy-to-reach tone and volume controls. It allows you to connect your headphones to the integrated headphone jack and enjoy your music privately.