I found this device (split open with no cover) and I'm trying to figure out what it is:
A bright blue LED on left & bright red LED on the right. A USB-C connector between them. I plugged it into my PC and it didn't make a connection sound, so I assume USB is for power only.
Clearer shot of the circuit board. I can't make out the markings on the chips:
The red capacitor on the right connects a coil (antenna?) on the back.
There is what appears to be a coiled antenna on the back:
It fits in a round magnetic base:
Assembled (without the missing cover):
Any ideas? TIA

A bright blue LED on left & bright red LED on the right. A USB-C connector between them. I plugged it into my PC and it didn't make a connection sound, so I assume USB is for power only.
Clearer shot of the circuit board. I can't make out the markings on the chips:

The red capacitor on the right connects a coil (antenna?) on the back.
There is what appears to be a coiled antenna on the back:

It fits in a round magnetic base:

Assembled (without the missing cover):

Any ideas? TIA