Oppo has confirmed the launch of its upcoming flagship smartphones, the Oppo Find X6 series, in China on March 21. The launch event will also unveil Oppo Pad 2 and Oppo Enco Free 3 truly wireless earbuds (TWS). Oppo has teased the earbuds through a series of posts on Chinese microblogging website Weibo and has revealed that they will feature Active Noise Cancellation (ANC) that covers frequencies up to 49dB. Additionally, the earbuds will have a bamboo fiber diaphragm sound unit, making them the world’s first TWS earbuds to feature such a unit. The marketing images suggest a stemmed design with a charging case in an oval shape sporting a translucent upper panel. The TWS earbuds could be offered in green and white.