Apollo CNX80  
Voice Prompting
The CNX80 is also the first integrated navigator designed for general aviation that includes voice prompting and audio alerting. For instance, when a count-down timer expires or you arrive at a waypoint, an audio "ding" is generated through the intercom, alerting the pilot. In addition, the CNX80 will also say "localizer alive" when the needles begin deflecting during an ILS approach, and at 500 feet above the runway during an approach the unit will announce "five hundred." The CNX80 will also advise the pilot at the missed approach point by announcing "missed approach point."

Other helpful features include multiple checklists which can be customized and entered into the CNX80 for reference during flight. Also, there are two general count-up or -down timers, one programmable flight timer, and one trip timer.