User Manual

BTHF304 User Manual
. 11
Press and hold button for at least 3 seconds
Adjust Volume
When in the talk mode, you can adjust sound volume up or down by rolling the volume wheel up or down.
Note
： For most Bluetooth handset, handsfree volume control will synchronize with the handset. That is, the sound
volume of your handsfree can be controlled by your handset, vice versa. However, this may not be always true due
to variations on handset implementations chosen by different manufacturers.
Voice Dialing
If the connected handset supports voice dialing, you can press and hold
button for at least 6 seconds to activate
voice dialing. Before using voice dialing, you must record voice tags in your handset. Please refer to your handset
manual for detailed descriptions on how to set up voice dialing and record voice tags.
When voice dialing is in progress, you can quick press
button to cancel voice dialing.
Mute an Active Call
You can mute or un-mute an ongoing call by pressing button.
2.5.2 Transfer Calls between Handsfree and Handset
To transfer an active call from the device to your handset, press and hold call button for at least 3 seconds,
until the call is transferred to your handset.
To transfer an active call from your handset to the device, press call button
or use the functions of your handset
as instructed in its user guide.
2.5.3 Advanced Call Functions
If your mobile phone has call waiting or conference functions, you can do the following with the handsfree device:
1. A new call comes in when the existing call is still in progress:
1) Press and hold
button for at least 3 seconds to hold the active call and accept the new call.
2) Press call button
for at least 3 seconds to end the current active call and answer the new call.
3) Press call button
, to keep the current call and reject the new incoming call.
2. When two calls are in progress, one is active and the other is on hold:
1) Press call button
to end the held call.
2) Press and hold
button for at least 3 seconds to toggle between the held call and the active call.
3) Press call button
to end the active call and accept the held call.
4) Press
button to make conference call.
2.6 AV Functions
This product supports AV Mode Functions. When connected with a Bluetooth-enabled multimedia/music player,
the product allows users to enjoy and remotely play stereo music from the player.