... speaker manufacturers & suppliers CE,ROTH option Portable Guitar Speaker with FM,Wireless guitar speaker,mini guitar speaker manufacturer & suppliers Type: ... Audio Player, Mobile...Channels: 2 (2.0)Special Feature: Wireless, Portable, Minimp4 speaker: USB Portdigital volume control: Windows 2000 ... design 3.5mm audio plug is able to connect with most MP3, MP4, Notebook and other personal electronic ...