7. How will the Q5 connect back to the paired device again?

A: Normally with Bluetooth turned on, the Q5 will automatically connect to the last two Bluetooth devices it has connected to, and the indicator will light steadily in Blue at this time. So please make sure to turn on the Bluetooth on the devices you wish to connect to before turning on the Q5's Bluetooth. 
Generally, it will take around 7 seconds for the Q5 to connect back to each paired devices.