New style portable mini speaker 1.Suitable for iPod,MP3,MP4,computer,mobile phone ,PDA and MDA 2.Power supply:Li-ion battery As ... and team efforts. The basic information of our New-Style mini speaker is as follows,1).Be used for iPod,MP3,MP4 ... ,computer,mobile phone ,PDA and MDA.2).RMS:4Ω 2.2W3).Frequency Response:200Hz-12KHz4).Power supply:Li-ion ...