Harman Kardon Citation Amp Owner's Manual page 30

1) Check that your iOS device has been connected to the
same network as the Citation Amp.
2) To enter the Control Center on an iOS device, swipe down
from the upper right corner (iOS 12 or later) or swipe up
from the bottom edge (iOS 11 or earlier). Tap
connected Citation Amp and then, start audio streaming
from an app.
3) To exit from the music playback, switch to other sources.
Play Music through Bluetooth
You can use your Citation Amp with your Bluetooth enabled
smartphone or tablet.
Music
iPhone
Citation Amp
to select the
10 m (33 ft)
Bluetooth
Settings
Bluetooth
DEVICES
Citation Amp
Now Discoverable
Connected
30