Trying to remove the ugly caulking on the baseboard in the basement and noticed this deadline of wire was running along the baseboard, I have seen in the past but not able to figure out what it is. I am guessing some sort of audio wire given they go by 2 sets, I thought they are ground wires, but I might be wrong. Someone please help!!! Pics below
Very definitely looks like speaker wire, similar to this available from Amazon:
What it was used for is anybody's guess. One would hope it was for connecting speakers to the amp, but somebody could have connected it to main power. That would be a Very Bad Thing™. Be sure to check for any voltage before just ripping it out.
Use of a non-contact voltage detector would be a good start. A multimeter would be a good addition if the NVD triggers for voltage.
Do try to find the other end to see what it's attached to. If neither end is attached to anything, feel free to rip it out and reuse/recycle it.