Wi-Fi has a lot of advantages. Wireless networks are easy to set up and inexpensive. They’re also unobtrusive. Many devices can use Wi-Fi, such as, computers, video-game, smartphones , tablets, and digital audio players. These can connect to a network such as the Internet via a wireless access point. Such an access point (Hotspot ) has an approximate range of about 20 meters (66 feet) indoors and a greater range outdoors. Hotspot coverage can comprise an area as small as a single room with walls that block radio waves, or as large as many square feet achieved by using several overlapping access points.