JK Audio BluePack - Manual (Page 14)

8
BluePack Wireless Interview Tool
Master or Headset Mode
In the Bluetooth world, a Master
device, such as a wireless phone,
computer, or music player, is
connected to a Headset device. The
Master device controls the connection,
and also has the ability to stream
stereo A2DP audio to the Headset
device. A2DP music streaming is a
one-way path from Master to Headset.
BluePack can act as either a Master
or Headset. Please note that wireless
phones typically cannot receive A2DP
stereo music streaming.
BluePack will first attempt to connect
using the Hands-Free profile, allowing
3.4 kHz (7 kHz if HD Voice is available
on your phone) telecom bandwidth
for a mono full-duplex connection. If
the Hands-free profile is not available,
BluePack will attempt to connect in
A2DP stereo streaming mode.
Bluetooth Wireless Technology
What is the Difference
between Profiles?
A2DP (Advanced Audio
Distribution Profile):
Used for stereo music streaming.
Headset: Facilitates mono,
full-duplex audio between two
paired devices.
Hands-Free: Similar to Headset
profile, but allows the receiving
device more control over the call,
such as volume, accept/reject/end
a call.