Vivo is a Chinese multinational manufacturer of smartphones headquartered in Dongguan, Guangdong province, China. Founded in 1995, vivo entered the telecommunication and consumer electronics industry with landline phones and wireless phones. From 2011, vivo started its smartphone business. As of 2014, vivo releases and markets its smartphones under the vivo brand, ranking as the 5th top smartphone brand in China, and 10th top smartphone brand globally. In 2014, vivo sold 25 million units in mainland China, in 2015, the sales volume would reach 45 million worldwide, with an average retail price of $300. The annual production capacity is 60 million units. Vivo is now among the top five most profitable smartphone brands in China. Currently 20,000 operators work in vivo, and 3,000 engineers are in four R&D centers in Dongguan, Shenzhen, Nanjing and Chongqing. From hardware design and manufacture, to software development (Android based Fun touch OS), vivo has built a complete and sustainable ecosystem.