Whether you're a keyboardist, drummer, or other musician whose performance keeps them anchored in one spot, the P2 Ultra-Compact Personal In-Ear Monitor Amplifier was designed specifically for you. A convenient hard-wired personal in-ear control center, the P2's belt pack puts monitor control right at your fingertips, plus it's powerful, lightweight and ultra-easy to use. In-ear monitor amplifier for personal monitor applications 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 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 "Built-like-a-tank", impact-resistant metal chassis 3-Year Warranty Program Designed and engineered in Germany 3.5mm Phones JackYou can use your favorite headphones, earbuds or custom-molded professional InEar Monitors (IEMs) with the P2, thanks to the top-mounted, standard 3.5mm (1/8") stereo output jack. Locking XLR / TRS InputBecause your monitor is crucial to your performance, P2's XLR / TRS combo input connector features a locking mechanism to prevent accidental mic cable disconnects. Just press the tab next to the bottom-mounted connector