# Airfoil: Give Your Audio Wings

Send any audio from your Mac to AirPort Express units, Apple TVs, iPhones and iPods Touch, and even other Macs and PCs, all in sync! Airfoil for Mac gives you your audio — everywhere.

With Airfoil, you can transmit sounds from media players like Spotify, Rdio and more, as well as audio from web-based applications like Pandora, Last.fm, and many, many more. You can even stream audio from hardware devices like RadioSHARK, XM and SIRIUS radios, or even a microphone, all around your house.

Airfoil also includes two helpful add-ons. Open Airfoil Speakers on other Macs, PCs, Linux boxes, and even iPhones, iPods Touch, and iPads on your network, and you can use Airfoil to send audio to them! And if you want to watch video on your computer with audio playing remotely, the built-in Airfoil Video Player should do the trick.

### Getting Started

We recommend having a quick read-through of this manual, but you can also just dive in if you like. You can refer back to the full manual for assistance at any time by accessing it from the Help menu.

### Updated in Airfoil 4.9.2

- The Instant On component has been updated to version 8.1.5, with some minor fixes. It's also now required for most Apple apps (though not iTunes) on Mac OS X 10.11 (El Capitan).

- We've fixed an issue where Airfoil could stop working with Airfoil Remote.

- A few other minor fixes and improvements have been made.

### New in Airfoil 4.9

- The Instant On component has been updated to version 8.1.1, with initial support for Mac OS X 10.11 (El Capitan).

- Airfoil now requires Mac OS X 10.9 (Mavericks) or higher.

- Fetching album artwork from iTunes is now much more reliable with Apple Music and iTunes Radio.

- The menu bar icons for Airfoil and Airfoil Speakers have been updated for Retina. We did this before, but there was a complication. This time, it's for real!

- A/V sync with EyeTV has been corrected.

- Many other minor fixes and improvements have been made.

Get more info about everything that's new in Airfoil 4 on the New in Airfoil 4 page.

### System Requirements

- A Mac running Mac OS X 10.9 or higher

### Installation and Removal

To install Airfoil, just drag it from your download folder to your Applications folder.

If you wish to remove Airfoil, simply place it in the Trash.

### Purchasing Airfoil

We provide a free trial of Airfoil for you to test. During the trial, audio quality is degraded after ten minutes of transmitting. The full version of Airfoil can be unlocked with a license key from our online store.

When you're ready, head over to http://rogueamoeba.com/store/ to purchase Airfoil.

For more information, see the Purchasing page.

### Upgrading to Airfoil 4

If you purchased a license for Airfoil 3, Airfoil 2 or even Airfoil 1, you're eligible for a heavily-discounted upgrade to Airfoil 4.