New style portable mini speaker 1.Suitable for iPod,MP3,MP4,computer,mobile phone ,PDA and MDA 2.Power supply:Li-ion ... 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 battery5).USB ...