This module is a two-channel headphone amplifier with two audio inputs with level controls. Input 1 is normalled to Input 2, which is equipped with a switching socket. A common loudness/master knob controls the level with max. output power ~ 2 W per channel (@ 8 Ohm load).
The inputs and outputs are DC coupled (i.e. also useful for other applications like small loudspeakers, lamps, LEDs, magnets, motors - provided that the power is sufficient).
Power consumption: 60-120mA at +12 V and 60-120mA at -12 V (depends upon the loudness and load)
Depth: 40mmHP : 6