Passive audio selector design, plug&play. No need extra power supply and no worrying about using the right power supply as this is a very basic passive unit, aluminum alloy switching button, easy to setup and requires no DC/AC adapter.
This device is compatible with most of the audio sources signal select or multi-rooms paralleled amplifiers and active speakers. Its very suitable for philharmonic as it no loss richness of the music. (Tips: Almost all of the audio switchers dont have the noise isolation functions, if you need the audio isolator please select the right one based on the audio devices you had. )
Device Dimension: 5.5 * 3.55 * 1.65 inch
Device NW: 0.66 lb