Andrew Byrne shows you how to use a BreathSlim to improve your singing and your breath control. To buy one, go to https://www.breathslim.com/buy_now. You can get 15% off a BreathSlim with the code BYRNE15, or get 20% off two with the code SAVE20. For more information on awesome gear for singers, please visit http://www.andrewmbyrne.com/gear-for-...