Hi, welcome to the Remote for Mac testing family
Remote for Mac allows you to control your Mac(s) from your iOS devices.
Change volume on your kid Mac without entering into his room and getting into the fight about it, from your iPhone.
If you have a Mac you are using as a media center, you will be able to mute/unmute the volume from your iPhone.
If iTunes is currently not running on that Mac, Apple's Remote app is useless to you, until you run it. With Remote for Mac you are able to start and stop iTunes on your Mac(s) from your iPhone.
Remote for Mac app allows you to control all the Macs in your local network after simply running on them tiny server app, link to which you can email from within the app.