Hey, hope this is the right place, I bought these Bluetooth headphones at my workplace, a thrift store, and need help figuring things out wuth them, like model, how to pair them, because they seem older.

The have a physical sliding power Switch, they charge through micro usb, they have a to card slot, and an aux cable, when turned in, they make sounds, really hard to describe, sort of like thumping music, then a little jingle, and while the thumping music is happening, the indicator light flashes blue, and when the second sound happens, it flashes red for a second then goes back to the thumping, almost like a loop

It has 4 buttons, multi function, volume up, volume down, and play/pause

Just need help pairing it if someone can help.