ADSL and Cable Routers
A wireless router uses radio waves and has a range of up to a few hundred meters. The benefits of wireless networks is that your compatible Wi-Fi devices don't need to use cables to connect to the Internet.
Virtually all modern wireless routers are capable of transmitting data at a speed of up to 300 MB per second, though there are currently no Internet providers in the UK that provide such a speed over the existing ADSL copper telephone network. Speed is also dependent on the distance, as well as walls and floors. Security is not an issue with the latest wireless routers as they all come with the ability to enter a master password which means only you and those who know the password can connect their Wi-Fi devices to your network.