Air2Net GPS Receiver features off-route warning and detailed street maps in the 50 states. Now you can turn your Windows Laptop or Pocket PC into a true GPS navigation system and never worry about getting lost. You can also use other forms of navigation software in conjunction with Air2Net GPS Receiver. Aviation, nautical, outdoor camping and hiking software are just some examples of the variety of softwares you can use with Air2Net BT-GPS H1 GPS Receiver. Simply ensure the software is compatible with NMEA-0183 and SiRF Binary protocols and you are free to explore the world with your new GPS navigation system!