Question: how do i connect my bluetooth to my jbl flip 4?
Answer: Turn on the loudspeaker by pressing the ON/OFF power button. ... 
Turn on the Bluetooth mode on your device (smartphone, tablet, computer). ... 
Select the model “JBL Flip 4” from the device list. ... 
The speaker will automatically connect to the last used device (smartphone, tablet, computer). ... 
Additional Information.