This professional package includes the AirTurn AT-104 transmitter and USB receiver, 2 AirTurn ATFS2 Foot Pedals, Pedal Board, 2 patch cables, and MusicReader PDF 4 Software for Mac and PC. 2 AA batteries included. Everything you need for maximum flexibility as a digital music professional! The AirTurn AT-104 is a wireless page turner for reading sheet music or any other digital document on your computer hands free. The AirTurn can connect to one or two footswitches for forwards and backwards page turns.