... mini speaker 1.Support U disk, Mini SD Card,TF Card, etc 2. MP3, FM radio channel, 3.With USB 4.Rechargeable mini ... portable USB speaker 1.Description and Specification:TF/USB card ... jack.5.This machine is a portable multimedia speaker, which is design exquisitely, convenient to ... 4Ω, Φ45mm strong magnetic wide-band hi-fi speaker.7.PC, laptop, computer, MP3, MP4, ...