Need Help With My Sony S-Air

[sixteenvolt420]

I think i finally figured this all out, but thought i'd ask here just to make sure, as i'm not the most technically minded person. I recently bought the Sony BDV-E300 Blu-Ray Home Theater System, and it of course has the S-Air capability. When reading the setup manual, i saw that i needed the EZW-T100 S-Air Wireless Transmitter. It finally arrived, after being on backorder for about 3 weeks. I totally missed that i apparently need an S-Air Receiver as well, to use my back speakers wirelessly. Is the link below what i need, so i can finally enjoy all of my speakers for my home theater? I can get it cheaper than amazon's prices if it is. Thanks everybody!!
http://www.amazon.com/Sony-AIRSA10-...1?ie=UTF8&s=electronics&qid=1249132062&sr=8-1