Fischer Amps In Ear Amp 2, High-Quality 9.5"" In-Ear Headphone Amplifier, Class A MOSFET headphone output with limiter function, Switch to the power amplifier for low impedance In Ear hearing systems and headphones with higher impedance greater than 250 Ohm, Two headphone output jacks and XLR male for connecting guitar in-ear cables, Robust 9.5"" housing with integrated switched-mode power supply with switchable power supply of 115 VAC or 250 VAC, Switchable lowpass 80Hz / 24dB / oct., Stereo, mono mix and mono operation, Output for controlling a bass-shaker amplifier, Two balanced inputs with XLR / jack combo socket, XLR outputs, Stereo Aux line-in, GND lift switch, Includes 3m headphone extension cable 3.5 mm stereo headphone + adapter 6.3 mm, Includes 19"" mounting kit