Designed for older computers with no internal Bluetooth. Check your computer specs for Bluetooth before purchasing. Manage your PDF sheet music library, create playlists, make annotations, and turn pages hands free with MusicReader for Mac and PC computers and AirTurn. Our lowest priced software and hardware package for reading digital sheet music and turning pages hands free! This Professional Package includes the AirTurn AT-104 wireless page turning transmitter and USB receiver, 2 AirTurn ATFS-2 Silent Pedals, pedal board, patch cables, and MusicReader One Year Subscription with download links Two AA batteries included for the AirTurn AT-104. Everything you need for maximum flexibility as a digital music professional!