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(240329) -- CHENGDU, March 29, 2024 (Xinhua) -- A visitor learns about a VR device during an exhibition of the 11th China Internet Audio and Video Convention in Chengdu, southwest China's Sichuan Province, March 28, 2024. The 11th China Internet Audio and Video Convention, demonstrating a series of cutting-edge technologies, opened on Thursday in Chengdu, capital of southwest China's Sichuan Province. Focusing on innovation and industrial upgrades, the three-day event has attracted participating enterprises to display their technologies in 5G+8K, 3D, cloud gaming and other sectors. (Xinhua/Tang Wenhao) (KEYSTONE/XINHUA/Tang Wenhao)