Don't buy this for the WiFi connection, it is not dependable.
Patience of, Amazon
12 January 2015
Summary: This was advertised as the best solution for a higher fidelity wireless solution when using the Apple 'airplay' protocol. I found it wasn't so great because it would intermittently drop the connection between the Apple products broadcasting that protocol.
Summary: I'm starting to deploy Airplay speakers around the house, decided to try the Pioneer A4. It's now working now on my WiFi network with Airplay, and it sounds pretty good. As you'll find looking through the low ratings of the speaker, setup is not for wimps. If you get lucky, it'll work right away.
Summary: I got the recommendation to buy this unit from the very excellent review site, thewirecutter.com I've had my unit for about three months. The sound is great to my non-audiophile ears. The unit looks great and is very solidly built.
Summary: This speaker is great for home use. It took me a while to get it configured to work with my phone but once done it is great. I would like Pioneer to make their API open to allow more apps to play on the speaker.
Dropped signal / Difficult to setup but otherwise good speakers
Mike C, Amazon
3 August 2013
Summary: I was experiencing dropped signals (hiccups, stutter, what have you, even disconnect). I changed my router it didn't work (to AC). As someone else have mentioned here, they don't work with 5.8ghz so it is preferred you have a dual-band if you want your other devices to be on 5.8ghz.
Summary: I'm listening to music playing on this speaker right now, and it sounds great. The setup was nowhere near as simple or seamless as I would have liked, however. The first gotcha - this AirPlay speaker doesn't support 802.11n wireless networks.
Summary: Klanglich ist das Gerät für den Preis absolute Spitze, es klingt wirklich wie eine "große" Anlage. Durch den Subwoofer sind auch die Bässe sauber und druckvoll. Es gibt bei keiner Lautstärke Kratzen, Übersteuern, oder sonstige Wiedergabeschwächen, mit denen billige Lautsprächer zu kämpfen haben.