Airport Extreme to 3 Lan Airplay Speakers connection

Dear

I'm was wondering, before purchasing the Airport Extreme (http://www.macworld.com/article/2033878/review-apples-airport-extreme-is-a-safe- choice.html), if it was possible to connect my 3 Sony Airplay speakers (https://esupport.sony.com/US/p/model-home.pl?mdl=SANS310&LOC=3#/howtoTab) to the 3 LAN Ports of the Airport Extreme and airplay simultaneously as multi-room audio from my Iphone ?

Thanks for your cooperation.

Regards

Oliver