Wireless and Hotspots Wi-Fi, also spelled Wifi or WiFi, is a local area wireless technology that allows an electronic device to exchange data or connect to the internet using 2.4 GHz UHF and 5 GHz SHF radio waves. The name is a trademark name, and is a play on the audiophile term Hi-Fi. The Wi-Fi Alliance defines Wi-Fi as any "wireless local area network (WLAN) products that are based on the Institute of Electrical and Electronics Engineers' (IEEE) 802.11 standards". However, since most modern WLANs are based on these standards, the term "Wi-Fi" is used in general English as a synonym for "WLAN". Only Wi-Fi products that complete Wi-Fi alliance interoperability certification testing successfully may use the "Wi-Fi CERTIFIED" trademark. Wistec is a Certified ICASA Licence holder. Many devices can use Wi-Fi, e.g., personal computers, video-game consoles, smartphones, some digital cameras, tablet computers and digital audio players. These can connect to a network resource such as the Internet via a wireless network access point. Such an access point (or hotspot) has a 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 kilometres achieved by using multiple overlapping access points. Wistec supply all these technologies and can even link your CCTV surveillance system to the web. We also employ the latest security measures for our network to block hacking of vulnerable data on client computers. Although we use server level Clam anti-virus and Linux firewalls to protect our network from outside intrusion, 3rd party anti-virus security software are left to the discretion of the end user.