Battery Level Indicator,Up to 9 Miles of Sight,New High-Sensitivity GPS/GLONASS,Sleep Mode,USB Interface,Up to 80 hours Battery life,Rescue Mode,Frequency Mode: MURS,Rugged and Water-Resistant to 10 meters (1 ATM),LED Beacon Lights Visible up to 100 yards,Software updates: Via Garmin Express™ software,Available for both Mac® and Windows®,Water Resistant