ZTE is Chinese multinational telecommunications equipment and systems, headquartered in Shenzhen, China. It is the amongst world’s top five largest telecoms equipment maker measured by 2011 revenues and amongst world’s fourth largest mobile phone manufacturer measured by 2011 unit sales. ZTE's core products are wireless, exchange, access, Optical transmission and data telecommunications mobile phones. It offers products that provide value added services, such as streaming media and video on demand. The Company sells products under its own name but it is also an OEM, manufacturing products which retail under other brand names.