help with setting up sound

I have bought the pocketcloudpro and downloaded the 2X app for RDP connection on my iPad. Can someone please walk me through setting it up? I am trying to remotely connect to my MAC OSX and get sound on my iPad2. According to a post on the forum, there should be a setting that I can go to on PRO to turn on sound but cannot find it. Thought the 2X app would help???