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1
• Long press (3 seconds)
the On/Off button to
activate (or deactivate)
the headphones.
3s
• Once turned on, the
headphones enter
automatically into
Pairing mode.
• Please turn the headphones off when not in use in order to preserve battery life.
• The headphones will connect to the last paired device automatically as soon as you turn them on.
• The headphones will be automatically turned off if they are not connected to a device within 3 minutes.
Connect it
2
• The indication light
is flashing red-blue,
alternately.
3
• Activate Bluetooth mode
on your BT device.
• Search for available devices and
select CRYSTAL AUDIO BT4.
4
• The indication light
turns blue, permanently.
• Connection is successful.
CRYSTAL AUDIO
BT4
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