MAMX1, a 4-channel analog mixer with ultra-noise reduction. This is a brand new, unused stereo mixer. I opened the box once, but it didn't suit my needs, so I've kept it stored away unused. This product requires power via a MicroUSB-TypeA cable. The cable and adapter are included and also unused. - Model Name: MAMX1 - Number of Channels: 4 channels (4 inputs, 1 output) - Features: Ultra-noise reduction - Accessories: Instruction manual - Condition: Unused