Hamburger Speaker Raspberry Pi setup

Hi there,
I bought the hamburger speaker for a pi audio project. Does anyone have any tips on config for the pi? Or even what the 3 positions of the little switch are about?I have it working in passive mode, plugged into the headphone port. Keen to use it as a USB output device though. It doesnt seem to be showing up when I do

lsusb

tips?

Hi Nicholas,

As mentioned on the product page: ā€œEach Hamburger Mini Speaker comes with a 1.5ft mini USB cable for recharging capabilities.ā€ So the USB port is only for charging, not streaming audio.