On April 18-20, 2014, the 22nd Shanghai International Advanced HI-FI Demonstration will be jointly held at the Shanghai International Exhibition Hall and the Jinnan Building of the Shanghai Jin Hotel. The brand's SNOWHITE (booth number: 276), as a high-end brand in China's projection industry, will bring its new product '4K high-definition microporous transparent sound screen' to the exhibition. The product resolution: 4096X2160, aperture: 0.2-0.3mm, viewing angle is close to 180 degrees, gain up to 1.3, will become the focus of the entire exhibition. People at the exhibition site will simultaneously hold the 'Follow WeChat, free prize draw' activity: Activity time: April 18-20, 2014, 9:00-11:00 am, 14:30-16:30 pm; Event address: Shanghai SIAV 2014 The 22nd Shanghai International Advanced HI-FI Presentation, Shanghai Jin Jiang Hotel, Booth No. 276, No.59 Maoming South Road, Jinnan Tower; How to participate: 1. Scan the QR code, follow the official WeChat, and participate in the lottery for free; 2. Forward the award-winning WeChat, @@十朋友, and receive a gift from the person on the spot.