Impact Acoustics(TM) Amplified Volume Controls are specifically designed for use with our four and eight zone audio distribution modules. The amplifier is built into the volume control and provides 10 Watts of power to each room! The selector button allow you to toggle through the four input devices connected to the distribution module. An integrated IR receiver provides remote control of your source components. This unit also features a 3.5mm input jack - you can connect a portable CD or MP3 player directly to the volume control for local playback. Features: Four line level inputs at the distribution module. Connect volume controls via economical utp cable. 10Watt amplifier within the volume control. 3.5mm jack for MP3 or portable CD player. IR capability to control audio components.