The AU7254-WH is a four-room, multi-source Digital Audio Kit. Conveniently supplying all of the core compoments necessary to install a four-room Digital Audio system with digital and analog source accessibility, this kit comes complete with (4) AU7010-WH Digital Audio Amplified Keypads, (1) AU7000 Digital Audio Distribution Module, (1) AU7001 Digital Audio Input Module, (1) AU7007-WH Digital Audio Global Source Input, (1) AU7100-WH Digital Audio Bluetooth Receiver, (1) PW1020 Digital Audio Power Distribution Module, (1) PW1060 Power Supply, and (1) PW7760 Power Supply. Check out the Digital Audio mobile app.