The behringer p2 is an ultra compact personal in ear monitor amplifier that includes a super compact and lightweight design as well as a wide array of versatile features'. '.strtoupper('a')n internal stereo mono switch enables you to alternate between mono and stereo monitoring sources with the same device whilst the bottom mounted xlr trs combo jack is equipped with a locking mechanism to prevent disconnects during performances'. '.strtoupper('t')he p2 offers a high power output suitable for use around even the loudest drummers whilst the simple high quality level control provides you with effortless personal level adjustment'. '.strtoupper('t')he p2 is powered by 2 aaa batteries and can run for up to 12 hours'. '.strtoupper('a') convenient belt clip allows for hands free operation whilst the integrated current limit ensures your ears and your headphones remain protected at all times.