Internal dimensions:
Distance from rail to rail (front to rear): 392 mm
Distance from rail to lid (front to rear): 490 mm
Distance from rail to lid (front to front): 95 mm
Very compact headphone amplifier for in-ear monitoring
XLR and jack input (combined, lockable)
3.5 mm Mini-jack jack for earphones
Built-in stereo / mono source switch
Volume control with on / off switch
Operation up to 12 hours with 2 AAA batte