Check the listing for details. PageFlip Dragonfly 4-Pedal Bluetooth/USB Controller. Condition: New. Listed at 115.00 USD. Super-versatile 4-pedal Bluetooth Controller Welcome to your new center for creative control and dynamic performance: the PageFlip Dragonfly 4-pedal Bluetooth/USB controller. The Dragonfly connects by Bluetooth to manage select iOS/Android apps, as well as desktop software on Mac/PC/Linux computers. The Dragonfly's two larger, lower pedals and two smaller, upper pedals duplicate the action of a standard keyboard to execute key presses for functions such as directional arrows to scroll lyrics, left/right mouse clicks for selectable on-screen operations, volume up/down, and playback of tracks. Battery life is approximately 200 hours, and there are five preset modes that can be reprogrammed with PageFlip's software for Windows 7+ or MacOS 10.9+.