I have been using one of these for years. Then I upgraded my phone and tablet to Samsung Android devices. Uh-oh, no headphone jack. I started out with one of the inexpensive usb-c to 4-pole headphone jack adapters. I could not get it to work, until I discovered the trick: you have to plug in headphones to get the adapter (actually a dac and adc built into a connector) to turn on. It worked, but SQ was not great, and dragging around headphones just to activate it was a pain. Then I tried the RDE AI-Micro usb interface. That thing worked right out of the box. Now I can do impromptu testing of live band sound, room acoustics, sound system behavior, etc. I am using the Sound Spectrum Pro App, which has an RTA mode that can run at 1/24th octave resolution. It is an amazing combination.
Rating:
[4 of 5 Stars!]