Microsoft Corporation RM-774 사용자 설명서

The antenna area is highlighted.

Change the volume of a call, song, or video
Use the volume keys.

You can adjust the volume during a call or when an application is active.

The built-in loudspeaker allows you to speak and listen from a short distance without

having to hold the phone to your ear.

Activate or deactivate the loudspeaker during a call
Select   or  .

Attach the wrist strap
Thread the wrist strap, and tighten it.