A - BUS, In-wall Multi-key keypad with built in 15w amplifier 

Amplified In-Wall Module with Onboard Controls for A-BUS® Applications

The ultimate keypad. The AB 2 connects to your compatible A-BUS®-equipped AVR* or ABH expansion hub to power your local speakers without an additional amplifier. Also, it easily allows you to select and control your listening sources as you enter a room (and its key caps are swappable, to mirror your system), or to power the system off as you depart. And during your stay? The AB 2 has an infrared sensor to relay your every wish to the AVR with virtually any Harman Kardon remote.
*Works with AVR 347 and AVR 3550HD models.