I would need to see it with the wires pulled out of the box to say for sure but it appears to be 120. I see the white neutral wires tied together and what appears to be just one other wirenut with all of the 120 volt wires tied together. If there are more connections inside the box that aren’t visible in the picture I could be wrong. Be very careful if you try to pull them out as they will sometimes pull out of the connector under stress exposing you to a shock hazard. Should turn off power to explore further.