New Delhi:Chinese smartphone manufacturer OPPO has launched its OPPO A77 smartphone in Taiwan featuring an impressive 16-megapixel selfie camera and 4GB of RAM at 10,990 Taiwanese dollar which translates to approximately Rs 23,400. According to DipankarGanguly in 'Gadgets | Software | Apps', the smartphone is listed on the company's Taiwanese website and will be available for pre-orders starting May 19 while the shipments will be done after the official availability from May 26.