Affected by financial crisis, European and American audio local orders significantly shrank, so European and American audio giants turned to explore Chinese market with markets in south China regions including Shenzhen as the first choice. At the recently-held 4th Shenzhen Yeller AV Show, more than 30 European and American band manufacturers changed the ways they only participate in Hong Kong audio show and wait for agents of Shenzhen to travel to Europe and America to sign orders, and directly came to Shenzhen to promote their audio products. According to businessmen present from all over the world, orders have surpassed the expected in the first day of the Show.