Sena SF4 User Manual

SF Series
47
English
15.9 Enabling/Disabling Voice Prompts (Default: Enable)
You can disable voice prompts by software conguration settings, but
the following voice prompts are always on.
– Voice prompts for headset conguration settings menu
– Voice prompts for battery level indicator
– Voice prompts for speed dial
– Voice prompts for FM radio functions
15.10 Enabling/Disabling RDS AF
(Default: Disable) (SF2, SF4)
RDS AF allows a receiver to re-tune to the second frequency location
when the rst signal becomes too weak. With RDS AF enabled on the
receiver, a radio station with more than one frequency can be used.
15.11 Enabling/Disabling FM Station Guide
(Default: Enable) (SF2, SF4)
When FM Station Guide is enabled, FM station frequencies are given
by voice prompts as you select preset stations. When FM Station
Guide is disabled, the voice prompts on FM station frequencies will
not be given as you select preset stations.
15.12 Enabling/Disabling Sidetone (Default: Disable)
Sidetone is audible feedback of your own voice. It helps you to
naturally speak at the correct level according to varying helmet noise
conditions. If this feature is enabled, you can hear what you are
speaking during an intercom conversation or a phone call.

Sena SF4 Specifications

General

FM radio	Yes
Sample rate	48 kHz
Maximum range	1200 m
Bluetooth version	4.1
Channels quantity	4 channels
Bluetooth profiles	A2DP, AVRCP, HFP, HSP
Preset stations quantity	10
Operating temperature (T-T)	-10 - 55 °C
Certification	CE, FCC, IC
Product color	Black, Grey
Charging time	1.5 h
Quantity	1
Cables included	AC, USB

Weight and Dimensions

Depth	16.6 mm
Width	73.3 mm
Height	38.7 mm
Weight	35 g