WiFi fence Help


silly girl
Barked: Fri Sep 18, '09 9:40pm PST 
I want to get my girls the wifi fence so far the ones that i found are a radius and i want them to have 100ft wide x 300ft. deep does anyone know much about this and can i program it the way i want or does it have to be a circle.
Thank You ...Sue & the girlsshrug