... .speaker with card reader 4.mp3 mini speaker w/ line-in 2011 Hot Selling! Outdoor MP3 Mini Speaker w/ Bicycle Clip ... , can be an attachment notebook, mp3, m4, iphone8. All function in one interface design10. Applicable to MP3, MP4, Laptop, PC, MD, Mobile ... ---18KHz5.Signal-to-Noise>80db6.Distortion<0.5%7.BatteryBuilt-in Li-Battery(1100MA)8.FM Frequency87.5---108MA9.Music FormatAPE ...