Use your iPhone as a live microphone! First, plug your iOS device into a stereo system and then, fire up the VonBruno Microphone app. Get everyones attention, make announcements, go wireless with Bluetooth and Airplay streaming. Features you’ll love: • Easy on off switch • Swipe up or down to adjust volume • Backgrounding and lock screen support • Bluetooth and AirPlay streaming • Feedback reduction technology • Choose from different mic patterns