Behringer Microamp HA400 Headphone Amplifier

Input. Type 14 TRS connector, stereo . Impedance 100 kOhms . Max. input level 15 dBu . Headphone Outputs . Type 14 TRS connector, stereo . Impedance approx. 80Ohms . Max. output level approx. 40mW in 100Ohms . Power Supply. external power supply, 12V 150mA . Power range USACanada 120V, 60Hz, China 220V, 50Hz, U.K.Australia 240 V, 50Hz, Europe 230V, 50Hz, Japan 100V, 5060Hz. . Dimensions . Dimensions HxDxW approx. 1 56 x 2 14 x 4 116, approx. 46.5mm x 57.2mm x 103.6mm . Weight approx. 0.38lb. 190g .