The Behringer P2 is a compact personal in-ear monitor (IEM) amplifier designed for musicians and performers to control their monitor mix on stage. Here’s some information about the Behringer P2:

Features

• In-ear monitor amplifier for personal monitoring
• Ultra-compact and lightweight design
• XLR and TRS input connector with locking mechanism
• Level control with power on/off switch
• Stereo/mono source switch (internal)
• Runs up to 12 hours on 2 AAA batteries (not included)
• Battery control with LED indicators
• Integrated current limit protects your ears and headphone
• Convenient belt-pack clip included