Ultra-compact personal in-ears amplifier for monitoring applications, ultra-lightweight design, drum-proof high-power headphone output, combo XLR/TRS input connector with locking mechanism, level control with On/Off switch, toggle switch mono or stereo (internal) source, works up to 12 hours with AAA batteries (not included), battery control with LED indicators, integrated current limit to protect ears and hearing aids, includes belt-pack, resistant metal chassis, dimensions: 33 x 38 x 132mm, weight: 140g.