Stimulation: 18 Levels Continuous and 18 Momentary,Up to 9 Miles in Sight,New High-Sensitivity GPS/GLONASS,New Up to 80 hours Battery life,New Software updates: Via Garmin Express™ software,New LED Beacon Lights Visible up to 100 yards,New Sleep Mode,Stimulation, Vibration and Tone,USB Interface,Low Battery Indicator Light,Rugged and Water-Resistant to 10 meters (1 ATM),Rescue Mode,Frequency Mode: MURS,Software updates: Via Garmin Express™ software,Available for both Mac® and Windows®