The B-1/B-2 visa is a non-immigrant visa for individuals traveling to the United States for business or tourism. The B-1 visa is specifically for business purposes, such as attending meetings or conferences, while the B-2 visa is for leisure activities, including vacations and visiting family. Applicants must demonstrate their intent to return to their home country and provide evidence of sufficient funds for their stay. The B-1/B-2 visa typically allows for stays of up to six months, with the possibility of extensions under certain conditions.