This is the headset that us instructors use for our inland and XC courses. Works very well. 

This is the perfect accessory for in-flight communications: A microphone and ear phones which easily integrate both into your helmet. A push-to-talk finger button allows you to talk without letting go of your brakes. Feed the cable through your sleeve to your finger.In combinations with our 4-5W UHF radio, you have the perfect set up to communicate clearly, without wind noise and while concentrating on flying we