# Using Airfoil

Getting started with Airfoil is easy. Read on for information on the Main Airfoil controls.

### Airfoil's Main Window

Airfoil's Main window
Airfoil's Main window contains all of its essential controls, so transmitting audio with Airfoil is a snap. Simply select an input source from the Source popup at the top of the window, then click the Transmit button next to each output to which you'd like to send audio.
From the Main window, you can also adjust the volume at which audio is sent to each output, access the Effects window (see below) and view the level meters, which show audio activity for Airfoil's currently-selected source.

### Effects Window

Airfoil's Effects Window
Airfoil's built-in Effects let you adjust audio as it's transmitted. Click the Effects button on Airfoil's Main window to bring up the Effects window. From here, you can adjust the 10-band equalizer, tweak the balance and adjust the global transmission volume for all outputs.

### Radio Tuner Window

Airfoil's Radio Tuner Window
When a Griffin RadioShark is attached to your computer, you can transmit the radio's audio through Airfoil. The Radio Tuner window enables you to adjust the settings for your radio.