You can get so called wireless boosters or extenders. The price is about the same price as for a good router.
There are a few different brands of quality signal boosters for cellular phones. Some of the companies that make quality signal boosters are Wilson Electronics and Wireless Extender.
Wireless internet boosters are installed very easily. You install them the same way you would install any other program.
Amped Wireless provides wireless consumer and business products for the home and the office. The product available are routers, extenders, USB adapters, A/V net connect and antenna boosters.
I highly recommend cellular signal boosters if you are looking for a wider range of wireless in your house. Most houses must use a booster because of the way the house is built.
www.verizon.com and www.att.com sells wireless internet service cards.
You can get so called wireless boosters or extenders. They allow to cover longer distances and make internet accessible in areas where your router cannot provide a signal.
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Cricket Wireless offers cellular modem services in many US states for $40 a month.
X10 Wireless Cable TV sells their wireless cable service for 69.99. You may be able to find a cheaper service online. Also calling your local Cable provider and asking them if they provide the service.
The major difference you might find between an expensive and inexpensive wireless web camera might be the picture quality or sound quality since they will need to use lower grade equipment.
Best Buy is one store that sells Beats Studio wireless headphones.