Sena Bluetooth SMH10R v4.3 User's Guide - Manual (Page 18)

SMH10R
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5. The GPS confirms that pairing has completed and the SMH10R
is ready to use. You will hear the voice prompt, “Your headset
is paired”.
6. If the pairing process is not completed within three minutes, the
SMH10R will return to stand-by mode.
The pairing diagram for multipoint GPS pairing is shown in the
figure below.
Multipoint GPS Pairing
Smart Phone
SMH10R
GPS
HFP
+
A2DP
Mobile Phone
Pairing
Multipoint
Pairing
HFP
7.4.2 GPS Pairing as Mobile Phone
If GPS is not only used for turn-by-turn voice instructions but is
also your preferred Bluetooth stereo music source, you can pair
the GPS to the SMH10R by following the simple procedures in “7.1
Mobile Phone Pairing”. When you do this, the SMH10R thinks the
GPS is a mobile phone. But SMH10R can directly pair an additional
mobile phone.
Mobile Phone SMH10R
GPS
HFP
+
(A2DP)
Mobile Phone
Pairing
Multipoint
Pairing
HFP
GPS Pairing as Mobile Phone