Every pilot knows that a good pair of aviation headphones is a basic requirement for flying a plane. The Bose A20 Aviation Headset reduces noise significantly for a more peaceful flight. Using Bluetooth technology, communicating through the headset is clear, and the device's control module offers options for plugging into GPS and adjusting the audio. The microphone can be switched to either side. It's also comfortable, with a sheepskin-lined headband that fits firmly without clamping down.