Life raft is deployed. >> they'll go with the life raft? >> exactly. >> let's move on to tell how it actually works. how does it send signal, how does that work? you can draw. the newer models, you got the satellite in space sending a signal to the gps. the unit know it's where it is. sending a signal back out into space, saying here i am. here's my location. here's who i am. and then so the authorities who then receive a signal from the satellite -- >> to the tower. >> to the tower. and then you've got, a rescue network becomes activated. and they know exactly where to go. now, they know who'...