I have read a couple of reviews of the Bluetake BT420 stereo bluetooth
headset (plus transmitter dongle) that made it sound like it was
pretty great. So I bought one. It is pretty great, but it has a couple
of problems you should be aware of:
- There is a perceptible delay in audio. Don't plan to watch video
if lipsync problems annoy you. I hope the delay is mostly in the
encoder and wouldn't be present with a computer sending directly... if
it could...
- I can't find an OS that can send stereo audio directly to the
headset. This is a big part of the reason I wanted bluetooth.
- The Class 1 adapter that I tried on my computer didn't result in
any improvement in range. Does the headset also need to be Class 1?
The problems with sending sound are mostly because A2DP is too new:
- PocketPC HX4700, even though it is the latest and greatest iPaq
and sports bluetooth 1.2, does not support A2DP. It will only make a
voice-quality connection. Same with Windows XP sp2.
- MacOS: I made the headset discoverable, it appears in the OSX
browse list. I select it and click 'browse' and after entering the pin
0000, it produces an error something like "The device does not provide
the required services." Using 10.3.5 on a Powerbook with builtin
bluetooth. I've heard that the OS and bluetooth firmware may need a
tweak.
- Linux: using bluetooth-alsa,
I can send and receive mono audio. There are no drivers yet that can use
A2DP for stereo/hifi audio.
