Acoustic search guidance uses a tone to guide you in the direction of the buried subject and allows you to concentrate visually on the avalanche field during the search Protective Rescue-Send function for nonsearching rescuers-in the event of a secondary avalanche, it automatically switches to Send to allow the rescuer to be located Intuitive visual interface provides detailed guidance through all search phases and an overview of multiple burial situations Self-Test function checks that the device is transmitting and searching correctly on startup and provides ongoing send and battery tests Group Check function quickly and easily checks the transmission frequency and level of devices to ensure optimal functionality Interference Guard intelligently manages and mitigates signal interference and indicates if interferences are detected in both Send and Search modes Auto-Select function guides you to the strongest/closest signal first in case of a multiple burial situation Auto-revert to Send will automatically switch the transceiver from Search to Send if a rescuer does not move for 4 mins. thanks to an advanced motion sensor Deep Burial mode-if a deep burial is detected, fine search is automatically started earlier (>3 m) and provides precise guidance Auto guidance will continue to guide the rescuer to the buried subject in the event of signal failures or overlaps Reverse direction function prevents 180Adeg search errors 450 hrs. of battery in Send mode; at least 200 hrs. in Send at 50AdegF (10AdegC) followed by 1 hr. in Search at 14AdegF (-10AdegC) Includes Barryvox carrying system with SafeLock which prevents accidental activation of Search mode Compatible with the Mammut app for firmware updates, configuration settings, Barryvox search training, extended user manual and knowledge base Updatable software 70 m range Imported.