Uniden BT229 - Manual (Page 12)

General Information
You cannot use the headset while it is recharging.
Bluetooth wireless devices have a maximum range
of 0 feet (10 m); the actual range varies depending
on current conditions (obstacles, battery power,
interference, etc.).
The headset can be connected only to devices
that support the Bluetooth headset or hands-free
profile. This product is not compatible with standard
cordless phones.
Battery life
With average use, the battery should provide about
6 hours of talk time and  days of standby time. If a
battery is new or left unused for a long time, it can
have reduced capacity the first few times you use it.
For maximum battery life, keep the battery charged.
When the battery only has enough charge for about
15 minutes of talk time, the headset triggers a low
battery alert: you’ll hear a periodic beep, and the
LED changes from blue to red.
When the battery no longer has enough charge to
operate the headset, the headset will power off;
you won’t be able to turn it back on until you charge
the battery.
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Noise or Static on the Headset
The most common cause of noise or static on any
wireless device is interference. Bluetooth devices
operate in the ISM band (.0 GHz ~ .0 GHz);
any equipment operating in this frequency range
might interfere with the headset. Some common
sources of interference in this range are
Equipment that uses microwaves, especially
microwave ovens
Wireless LAN equipment or WiFi connections
Other Bluetooth devices or computers
Certain cordless telephones
Certain medical equipment and appliances
If you have problems with static during calls, look for
one of these interference sources. Try moving away
from the suspected source.
If the noise continues, there may be interference
on your phone itself, and any noise in the phone’s
connection will come through on the headset, too.
Transfer the call to your phone and see if the audio
quality improves. If it doesn’t, look around for things
that can interfere with your phone.
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