Product: Monoprice 4-Channel A/B Speaker Selector - Black With Volume Control, 100 Watts Per Channel, Accepts Wire Gauges Up To 14AWG, Maintains 8 Ohms
Brand: Monoprice
Color: Black
Will allow you-Inch have different source audio sent-Inch different rooms so that someone in one room can be listening
It supports a frequency range of 20Hz-Inch 20kHz.
Accepts wire gauges up-Inch 14AWG and maintains load at 8 Ohms
Refer user manual below.

Search query: volume control speaker selector
Relevance: Exact