IEEE 802.11 is a set of standards for wireless local area networks (WLANs).

The standards encompass these:

**802.11a**
  * 5 GHz radio frequency
  * Up to 54 Mbps transfer
  * ~35 meter in-door range

**802.11b**
  * 2.4 GHz radio frequency
  * Up to 11 Mbps transfer
  * ~35 meter in-door range
  * Nearby devices of a similar frequency can cause interference--microwaves, cordless phones, etc.

**802.11g**
  * 2.4 GHz radio frequency
  * Up to 54 Mbps transfer
  * ~35 meter in-door range
  * Nearby devices of a similar frequency can cause interference
  * Backwards compatible with 802.11b wireless networks

**802.11n (proposed standard amendment)**
  * 2.4 GHz or 5 GHz radio frequency
  * Up to 300 Mbps transfer
  * ~70 meter in-door range
  * Backwards compatible so far