Interface side, all that is needed is available: a line input (to bed radio or similar source), microphone input plus built-in microphones, a headphone output with a potentiometer for the output volume, a potentiometer adjust the recording volume with a high-low sensitivity switch or an automatic mode, and even 2 speakers on the underside (with bad sound, but they are there when you have nothing else on hand). Recording to internal memory or SD card, 2 accessible by USB cable)
Only criticism: being neither complex nor incomprehensible, the procedure meets logic somewhat "primitive". We made it very quickly, but you could probably do better. The screen is small and loaded with information: you better have good eyes.