OMNITRONIC LH-125 IR is a stereo volume controller for analog line-level audio equipment. It provides infrared remote control for volume up, volume down, and mute functions. The unit features stereo RCA line input and output connections, power and mute status LEDs, a metal desktop console housing, and a frequency range of 20–20,000 Hz. It operates on 12 V DC and is supplied with an external 100–240 V AC power adapter.