Lennox Hearth M5390 - Manual (Page 16)

14
English
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.
7.1
7.2
7.3
7.4
7.5
10 min
8.5
Features:
Range
70 m headset/base -
headset/dongle
10 m for most mobile phones
Talk time/
standby time
Up to 6 hours/up to 60 hours
Transmission
protocol
Bluetooth ®
Frequency band 2.4 GHz