Bose 's $479 SoundLink Air Digital Music System , an AirPlay version of the company's venerable SoundDock speaker docks, is a somewhat portable speaker system. I say "somewhat" because though it can be powered by a battery, the SoundLink Air doesn't include one-Bose's rechargeable lithium-ion...
Easy setup; good audio quality
Rechargeable battery not included; bass distortion at top volume