Plantronics Explorer 210 - Manual (Page 12)

8
Range
To maintain a connection, keep your headset within 10 metres (33 feet)
of the Bluetooth device. If there are obstacles between your headset and
the device, you may experience interference. For optimal performance,
place your headset and phone on the same side of your body.
Audio quality degrades as you move out of range. When you are far
enough away to lose the connection, you hear a high tone in the headset.
NOTE The headset attempts to reconnect for 30 seconds. If you move
back in range after 30 seconds pass, you can manually reconnect by
pressing the call control button.
NOTE Audio quality is also dependent upon the device with which the
headset is paired.
Headset Controls
Transfer a call from
headset to phone While in a call, press and hold the call control
button until you hear a single low tone.
Transfer a call from
phone to headset While in a call, press and hold the call control
button until you hear a single low tone.