Does Jaybird Vista 2 earbuds have ANC?

Yes, Jaybird Vista 2 are designed with passive noise reduction (PNR) and an active noise cancelation (ANC) function.

Active Noise Cancelation

When the earbuds are set in Closed mode (ANC on), sounds of the environment are actively cancelled and isolated by built in technology.

Passive Noise Reduction

When the earbuds are set in OFF mode (PNR), sounds of the environment are isolated only as a result of the physical seal the earbud forms in the ear.

See WHAT IS OPEN AND CLOSED MODE? or HOW DO I ADJUST OPEN MODE ON JAYBIRD VISTA 2?.