2.0 CH Computer mini speaker, 1,connect computer ,CD,MP3/4, and mobile 2, with earphone jack 3,good stereo sounds 2.0 CH Computer mini speaker Model No.: H-200ZB Description:1.Control:power,volume,jack,Mic. Speaker units:Plastic ,2.25" 8Ω 0.5W 2.Dimension :78*78*188(L*D*H) 3.Box size:170*80*188MM 4.Sets /Ctn:30 sets 5.CTN Size:528*420*396MM (3.06") www.szhighlevel.com