pi@alarmpi:~ $ cat /proc/asound/cards 0 [ALSA ]: bcm2835 - bcm2835 ALSA
bcm2835 ALSA
1 [Headset ]: USB-Audio - Logitech USB Headset
Logitech Logitech USB Headset at usb-3f980000.usb-1.3, full speed