Name: Sena SF4
Brand: Sena
Rating: 5 (1 reviews)

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SF Series

English

4.2 Powering On and Off

To power on the headset, press the Center Button and the (+) Button

at the same time for 1 second while hearing ascending beeps and a

voice prompt, “Hello”. To power off the headset, tap the Center Button

and the (+) Button at the same time while hearing descending beeps

and a voice prompt, “Goodbye”.

4.3 Charging

You can charge the headset by connecting the supplied USB power &

data cable into a computer’s USB port or USB wall charger. You can

use any standard micro USB cable to charge the unit. The charging

LED turns red while charging and turns blue when fully charged. It

takes about 1.5 hours to be completely charged.

ACAdapter

4.4 Checking the Battery Level

4.4.1 LED Indicator

When the headset is powering on, the red LED ashes rapidly

indicating the battery level.

4 ashes = High, 70 ~ 100%

3 ashes = Medium, 30 ~ 70%

2 ashes = Low, 0 ~ 30%

4.4.2 Voice Prompt Indicator

When you power on the headset, keep pressing the Center Button and

the (+) Button simultaneously for about 5 seconds. Then you will hear

a voice prompt indicating the battery level. However, if you release the

buttons as soon as the headset turns on, you will not hear a voice

prompt for the battery level indication.

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Sena SF4 Specifications

General