Ultra-compact in-ear monitor amplifier for personal monitor applications. It features ultra-compact and lightweight design, high power and "drummer proof" headphones output, XLR and TRS input connector with locking mechanism, level control with power on/off switch and stereo/mono source switch (internal). Runs up to 12 hours on 2 AAA batteries (not included). It is equipped by battery control with LED indicators, "Built-like-a-tank", impact-resistant metal chassis and integrated current limit protects your ears and headphone. Convenient belt-pack clip is included.