What do these mean? I’ll take a shot. 1. You don’t have to do anything. It turns itself on and off, and you don’t need multiple profiles for different types of jumps. 2. It just speaks into your ear at preselected altitude intervals. Simplest means of full time altitude awareness I’ve come across! So how does one get the proper alarms for tandem, wingsuit, free fly, or belly alarms? Or different canopy alarms? Easy, I just have mine set (by iPhone app) to tell me every 1,000’ from the door to 5k, then every 500 till pull, plus every 100 from 1,200 on down. I know that sounds like a lot, but in reality I don’t even notice it, I just ALWAYS know my current altitude. I don’t change anything no matter what the jump. When they first showed up at our DZ, everyone assumed all that talking in your ear would get annoying, but that’s absolutely not been my experience.