“The sound of the AW2 is broadcast on a proprietary Wi-Fi technology that uses the same frequency bands and technology as 802.11, but is a closed network with a protocol specifically designed for audio, and it sounds great. When my Airport express works, I have found the sound to be indistinguishable from hard-wired audio, and the AW2 sounds identical to me. Audioengine claims the AW2 uses “Uncompressed CD-quality digital transmission”, and “uncompressed” is a word we all love to see when you are dealing with already compressed audio (although I usually encode my tracks pretty fat at 256 kbps or better). I have not noticed any interference of any kind from sources like cordless phones, baby monitors, or microwaves, so it has been my experience that the AW2 has a rock-solid connection. The range of AW2 likely depends on environmental facotrs, but I was able to maintain a connection throughout my entire mansion (ok, it’s a regular suburban split).” —— macenstein.com