Bluetooth

1. WiFi 802.11a allowing a theoretical speed of 54 Mbps (30 Mbps actual)
2. 802.11b WiFi allowing a theoretical speed of 11 Mbps (6 Mbps actual) with a range of up to 300 meters.
3. 802.11g WiFi allowing a theoretical speed of 54 Mbps (30 Mbps actual) on the frequency of 2.4 GHz.

Bluetooth technology on some laptops is also a technology for wireless networks but its use is mainly focused on wireless personal networks (WPAN, Wireless Personal Area Network), which are intended for connection of small household appliances such as wireless phones, PDAs, etc. The IrDA (infrared) can be used to connect small devices by wired connection but without suffering, unlike Bluetooth technology, which has limitations in terms of distance and reduced flows