Specifications

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.