Why you need the Behringer Powerplay P1 In-Ear Monitor Amplifier: The Behringer Powerplay P1 In-Ear Monitor Amplifier is a reliable and affordable monitoring system for performers and recording artists. It has a built-in current limiter, which won’t allow unexpected peaks to get to your ears. You can clearly hyear your own performance and blend in with the rest of the band to your desire. The Behringer Powerplay P1 is powered by a 9V battery that lasts up to 12 hours! Features: • In-ear monitor amplifier for personal monitor applications • High power and "drummer proof" headphones output • Dual XLR inputs allow for 2-channel mono or stereo operation • Switchable stereo/mono operation with mix function • Level and Balance/Mix controls • Runs up to 12 hours on a 9 V battery (not included) • Battery control with dual LED indicators • Operates on BEHRINGER PSU-SB DC power supply (not included) • Integrated current limit protects your ears and headphone • Convenient belt-pack clip included • Mounts easily on a standard mic stand with 5/8” and 3/8” thread • "Built-like-a-tank", impact-resistant metal chassis • 3-Year Warranty Program* • Conceived and designed by BEHRINGER Germany