FCC involvement illegal. The one i have for cellphones won't jam up any of the cordless phones i've tried it on, and not wifi routers either. if you want jam routers try a 2.40~1GHz cordless phone (kinda old now) But i do recommend getting it from the UK the shipping is fast and the product is awesome.
might i suggest:
messing with douchebags could also be done by paying $19 for a bluetooth dongle and playing with hcitool's. don;t forget to acrtivate the "daemon" first hcid
My own mediocre attempt at humor has been highly amusing to myself.. rfcomm tools are also cool to use, do you own a laptop???