SCD-1 session using my Micro-Mini Travel Portal for the first time out at an old cemetery. I added some quartz crystals wrapped in copper wire to it, just like on my full size Portal. It sounded great & works perfect. It all fits nicely inside a small plastic case 11" x 7" x 2 1/2" with the pedals & battery pack secured with velcro. I didn't use my reverse pedal for this session, it's still on my full size portal. But that will have a replacement soon so both will have a reverse function. I decided to use the SCD-1 app for this first run of the Mini Portal since the Portal was designed around the SCD-1 app. But of course it can be used with any app or ghost box radio.