It is a professional recording app for external microphones (USB, Wired). Features: 1. There is no delay from Mic to Speaker. 2. Supports USB microphone, Wired microphone in the same app. 3. Use standard audio format (m4a) that makes it easy to play files in other apps. 4 Input signal magnification up to x16. 5. Save files in public-access folder. 6. Move (share) files to other apps. 7. Live sound listening to any speaker (you can select). 8. Skip the silence on the fly (sound detector). 9. Supports running in the background mode. USB MICROPHONES You can connect any USB microphone / USB audio card / USB camera to your gadget in 5 sec. WIRED & Built-in MICROPHONES You can record HD audio from any wired microphone. BACKGROUND OPERATION The app can work as a FOREGROUND SERVICE (background operation) to record sounds for a long time in the absence of a person. For example, the app can record sounds from pets (cats, dogs) on a USB microphone when the owner is not at home. To do this, select "Exit -> Run in the Background".