Shure FP410 IntelliMix 4 channel mic/line automatic field mixer. Very popular for film/video, braodcast, interviews, and more.
Can be battery powered or regular AC, depending on your needs.
4 inputs, microphone or line level with rolloffs, phantom power, limiter, and more. Outputs are line or mic level. Complete features and specs are available online if needed.
* NOTE - This one needs to be serviced. All inputs are passing signal, but the outputs are very weak on mic level mode (can't hear channels, barely hear test tone), and on line level mode they're very noisy, picking up rf, and crackly. Not sure of the cause.
Selling strictly as-is, very cheap, so no returns. Great chance to get one cheap to fix, or to use for parts to fix another unit in the series. There is only one out of the four chassis screws (I think we were going to have it teched a while ago before the shop we used closed up). Including unit as shown only, no cables or accessories.