Jabra M5390 User Manual page 17

8.5
Features:
Range
Talk time/
standby time
Transmission
protocol
Frequency band
14
230 feet/70m headset/base -
headset/dongle
33 feet/10 m for most cell phones
Up to 5 hours/up to 60 hours
®
Bluetooth
2.4 GHz
Headset switch
8.5 If the headset is absent,
the headset switch must be
activated in order to use the
handset or, if the headset is in
use with another Bluetooth
device, the headset switch must
be activated in order to use the
handset.
®