The Hll Koll app is the locator for that is most important to you. You and locate right from your phone using the Hll Koll app. LOCATE-Check the location of the Hll Koll Watch- By tapping Emergency button on the watch, it triggers an automatic location and sends push messages to the apps users.- History playback tracksFor help, please visit www.hallkoll.nuTo purchase Hll Koll please visit at www.hallkoll.nu