Sena SPH10S User Manual page 10

SPH10S
Intercom Friend. The older Intercom friend goes to be
Second Intercom Friend, and Third Intercom Friend.
**For example, after the paring procedures as above, the
headset D is the First Intercom Friend of the headset A, the
headset C is the Second Intercom Friend of the headset
A, and the headset B is the Third Intercom Friend of the
headset A.
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