Apple AirPort Express Base Station (MC414LL/A) $91.93
Easy Wi-Fi setup using iPhone, iPad, or Mac: Connect your DSL or cable modem to AirPort Express and create your new wireless network in just a few taps from your iPhone, iPad, and iPod touch. If you're using OS X Lion, use the built-in AirPort Utility on your Mac. Setup is just as fast and just as easy.
Simultaneous dual-band 802.11n: AirPort Express lets Wi-Fi-enabled devices connect to your network on the 2.4GHzand 5GHz wireless bands. Which means every connected device automatically uses the best band available for the fastest possible performance.
AirPlay takes the music from the iTunes library on your computer or iOS device and sends it wirelessly to any connected stereo or speakers in your home (audio cable sold separately). Play music on one set of speakers - or if you have more than one AirPort Express connected to speakers, play your music from iTunes on all of them at the same time.