IEEE 802.11n is a set of specifications for high throughput enhancements to the 802.11 Wireless LAN standard. It includes a number of improvements at both the Physical (PHY) and Media Access Control (MAC) layers. As the latest longer range, higher speed version of the wireless standard, it builds on previous 802.11 standards by adding multiple-input multiple-output (MIMO) technology and 40 MHz channels to the physical (PHY) layer and frame aggregation to the MAC layer. 802.11n offers dramatically improved throughput, range and coverage with data rates of up to 300Mbps and 4 times the range compared to previous standards such as 802.11g.

The most significant new feature of 802.11n is MIMO (multiple in, multiple out). MIMO technology uses multiple antennas to send and receive digital data in multiple simultaneous radio streams, thus multiplying total performance. In general, the more antennas an 802.11n device uses simultaneously, the higher its maximum data rate. AirTies 802.11n devices use 2 transmit, and 2 receive antennas (2x2 MMO).

A 40 MHz channel is another feature incorporated into 802.11n to double throughput.
Legacy 802.11 products use channels that are approximately 20 MHz wide. The 40 MHz feature can be enabled in the 5 GHz band, or within the 2.4 GHz band if there is knowledge that it will not interfere with any other 802.11 or non-802.11 (such as Bluetooth) system using those same frequencies. To enjoy high performance by using 40MHz, most of the AirTies devices support Dual-Band wireless (2,4GHz and/or 5GHz), hence it is possible to get maximum performance by using 40MHz channel at 5GHz.

Coupling MIMO architecture with wider bandwidth channels offers increased data transfer rate.
802.11n is a significant improvement over previous standards such as 802.11b and 802.11g with an increase in the maximum raw data rate from 54Mbps to 300 Mbps (600Mbps with 4x4 MIMO). 802.11n also provides ways to ensure coexistence between legacy devices and the new 802.11n devices.

All AirTies new generation wireless devices use the 802.11n standard providing high speed coverage at ranges that were never before possible enabling users to transfer data, watch movies, or upload pictures to the Internet wirelessly at speeds of up to 300Mbps.