First, connect your iMac or MacBook Pro to the same Wi-Fi® network as your Airhome.
To play music using the speaker icon in the menu bar, first, start playing music or watching a video from any app such as Safari or YouTube.
Next, press and hold the ‘option’ key while clicking on the speaker icon in the menu bar. A drop-down menu will reveal AirPlay. Select any room to play music with Airhome.
Once you have selected a room, you can also control the volume using the volume keys on the top right of your keyboard.