AIS receiver and DSC (Class-H) function add further assurance for safety at sea. With the integrated AIS receiver, vessel traffic information is shown on the display. The AIS target call function allows you to easily set up a DSC individual call. Distress calls can be made with the rear panel button. The IC-M94DE’s 6 watts of transmit power provides extended communication range for the user. The supplied 2400 mAh (typical) high capacity Li-ion battery, BP-306 provides 10 hours of operating time, under normal conditions. The radio floats and the LCD screen, keys and rear panel Distress button flash to help you retrieve it from the water. Pressing the distress button while Float’n Flash is working will transmit the MOB distress signal, rather than the plain undesignated one for better protection of sailors.