M1 Smart Mountain Bike Helmet | 11
2 GETTING STARTED: BLUETOOTH SYSTEM
2.2 Button Function
Bluetooth System’s Buttons
(+) Button
(-) Button
Blue/
Red/Green
LED Lights
Center
Button
SENA Button
2.3 Powering On and Off
Powering On
=
1s
HOLD
Powering Off
=
1x
TAP
2.4 Charging
Charging the Bluetooth System
Depending upon the charging
method, the Bluetooth system will
be fully charged in about 2.5 hours.
Note:
• The Bluetooth system includes a Fast Charging feature which
allows it to charge quickly over a short period of time. For example,
a user can get up to 5 hours of talk time after charging the
Bluetooth system for 20 minutes.
• Please make sure to take off your helmet while charging. The
Bluetooth system automatically turns off during charging.
• Any 3rd party USB charger can be used with Sena products if the
charger is approved by either the FCC, CE, IC or other locally
approved agencies that Sena accepts.
• The M1 is compatible with 5 V input USB-charged devices only.
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