Behringer P1 personal in-ear monitor amplifier

I have a few of these p1's. used/with no issues like new. 1 for $50 2 for $80 These are great for stationary musicians who dont need to be wireless, drummers, keyboards, monitor/foh mixers etc. wired stereo/mono personal in ear monitor amp (for headphones/in ears) The Perfect Monitor Mix Dual XLR inputs allow 2-channel, mono or stereo operation with a convenient mix function which allows you to run two sources into the P1 and dial-in exactly what you want to hear as you perform. Two simple controls, Level and Balance, help you achieve the perfect mix in an instant. The P1 lets you take control of what you hear and allows the engineer to concentrate on providing the audience the best listening experience. Plus, setup is so fast and easy, letting you concentrate on putting on the best performance when you hit the stage.