... , AC power jack,user manual4.DV and AC power supply available. 5.Applications: Multi-media Room, Meeting Room, Bank, Hotel ... varios locations.7.Stylish and various sizes available8.1year guarantee 9.Simple installation 10.OEM service available 11.Certificate: CE 2.4Ghz ... About: Tongxiang Fengying Electronic Co., Ltd is specialized in various of speakers over 10 years, including rock speakers, lawn ...