... USB/SD, FM 4.passed CE,FC 2.1 CH fm amplifer speaker,1. Wonderful sound system2.Cheaper,high quality3. ... with USB/SD, FM4.passed CE,FC Commodity: 2.1 CH fm amplifer speaker-SD293Output(RMS):19W+9W*2S ... 20'G/40'G/40'H:524/1086/1274Description:1. 2.1 amplifer speaker with built-in USB and SD ... , MP3, TV, mobile phone and other audio input4. 2.1 speaker with FC, CE certificates Accessaries:3.5mm stereo audio ...