Fashional creative speakers 2.1 1.with DVD/USB/ SD/MP3 / ... unit:4 inch (125mm) 4.Input power:220V,50HZ Fashional creative speakers 2.1 with DVD / USB / SD / MP3 for ... workshop, the assembly shop and also the research and aging lab. We have more than one hundred staff, including five engineers ... you want to know about speakers, please ask us! Fashional creative speakers 2.1 with DVD / USB / SD / MP3 for ...