What is usen?

I'm assuming you are referring to USEN Corporation. USEN is a Japanese corporation that specializes in providing various entertainment and communication services. The company was founded in 1949, and over the years, it has expanded to provide various services ranging from music distribution, communication infrastructure, e-commerce, and digital marketing. USEN operates under several brand names, including PT Communications, Sound In Sound, and Radio Music. The company is headquartered in Tokyo, Japan, and has a presence in other countries, including the United States and China. USEN is committed to providing high-quality services and enhancing customer satisfaction through continuous innovation and investment in advanced technology.