Magellan eXplorist Pro 10 User Manual page 12

Fundamentals
[A] Power Button: Press and hold for 2 seconds to turn the
receiver on. Press again to bring up the Power Options menu.
Pressing and holding the power button down for 5 seconds will
reset the receiver.
[B] Back Button. Steps back to the previous screen.
[C] Camera Button. Accesses the camera function and is
used as the shutter button to take photograph.
Magellan eXplorist Pro 10 GPS Receiver 2