10
Function buttons:
PTT button -> to initiate a PTT group call
/- button -> volume adjustment
Multi-function button (MFB) -> accept, hang up and reject phone calls
(+ special functions) SOS button: Emergency call function (optional, refer to
the information on page 11)
Visual display elements:
Red, yellow and green LEDs to indicate battery capacity and operating states
Acoustic output and recording devices:
Microphone, Loudspeaker
Connectivity:
3.5 mm headset jack, Magnetic charging socket, Cable
5. Charging
Charging the product is only permitted outside hazardous areas while obser-
ving the following ambient temperature range:
Permitted charging temperature range: 0 °C to 45 °C
The product is equipped with an integrated, non-removable battery.
The battery installed in the product is not fully charged. We recommend
fully charging the battery before using the product for the first time. The full
capacity of the battery is reached after 3-4 complete charge/discharge cycles.
The product must be charged at least once every six months to a battery level
of 50 percent. If the product has been discharged, it may take several minutes
for the charging function to be displayed.
Insert the USB connector into the power supply unit and plug this into a pow-
er socket. Then connect the charging cable to the product‘s charging port.
The battery indicator informs the user about the progress of the charging function.
Battery capacity
Battery indicator
0 % - 19 %
Red LED illuminates
20 % - 99 %
Yellow LED illuminates
100 %
Green LED illuminates
Summary of Contents for RSM 01 Series
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