Based on the ANT+ wireless technology that powers a number of Garmin devices, chirp is a small beacon that can communicate with, and be programmed by, any compatible wireless-enabled Garmin handheld (such as Oregon, Dakota and the recently announced GPSMAP handhelds).
The device stores hints, transmits multicache coordinates, counts visitors and confirms the cache is nearby. Chirp costs $22.99, is a little bit bigger than a US quarter, has a one year stand by battery (that is also removable) and is waterproof,
"Experienced geocachers will embrace the countless options now available in creating cutting-edge caches, and beginners will appreciate chirp’s features that make those caches easier to find", stated Garmin.
With its massive market share in the outdoor GPS handheld market, Garmin has the opportunity to further protect this share with this type of innovation: cool for geocachers and impossible to replicate of any of its competitors.