For me the obvious; Life!  If you are not alive, you may not be able to possess or treasure much. ;-) That being said, family, friends, health and time with them.

Press and hold the main button until the units beeps and the blue light starts to blink.  Then have your phone search for Bluetooth devices.  When it finds the QThree, enter 0000 as the code. If successful, the indicator light will flash twice.