I've used this for about a year, but I'm selling it because the business is closing. It can digitally record in multitrack, so it was very useful for live recordings. I used it about once a month. It's a beautiful item with no scratches. An AC adapter is included. The manual can be downloaded from the website. The ZOOM LiveTrak L-20 is a 20-channel digital mixer that can handle medium-sized live PA systems. ◇Portable 20-Track Live Mixer/Recorder It integrates a full-fledged 20-channel live mixer with a multitrack recorder function and a 22-in/4-out USB audio interface function. Six monitor outputs that can send each performer's preferred mix balance can be output not only to headphones but also to floor monitors.