Basically it transfers data from an external device to your computer via an infra red transmission. Many portable devices use this form of wireless technology such as PDA's and phones. Some laptops have infra red receivers built in, however many don't... like mine!!! And I'm not to sure that many desktop PC's have them standard either. Well with my old Polar watch I use to update my data using the Sonic link. Although it's really cool how this operates (transfers the data via sonic waves to a microphone on your computer) the transmission was often disrupted due to a bad link up. Since having my new Polar S625X watch that utilises the infra red technology, I have been very impressed with the efficiency of the data transfer. Not only is it faster, but it's far more reliable as well. This little gizmo is a great addition to have up your sleeve.
Features of the Polar USB irDA Interface:
* Plugs into a spare USB port
* Compatibility: S610i, S710i, S720i, S810i, S625X, S725X, XN500 and AXN700 using the Polar Precision Performance 3/4 software running under Windows 98SE and above on IBM compatible hardware.
Order your Polar USB irDA Interface at Mr.Gadget today!