Clearwire → Why are 2.4ghz wifi antennas being bundled with clear modems

I noticed theres 2.4ghz wifi antennas that are sold with clear hub express

»4gnewyork.com/Clear-HUB- ··· 8000.htm

»www.ebay.com/itm/WiFi-Wi ··· ad6d1aa2

these are just normal 2.4ghz antennas that dont even cover 2.6-2.7ghz so why are they being bundled together?

you posted links that are not from clear,I got clear for 2 people and I gave one of my friends my old router antenna so I guess it's just a bonus..

the ebay antenna is titled "for clear hub express" and it is a normal wifi antenna

although not sold together by clear itself clear did say they tested that antenna and found it to work with the hub express. However that price is high both could be purchased separately for less.