... from Audio Music Source from SD memory card or USB flashdriveNew portable aluminium vibration film loudspeaker allows the minimum ... + 5W) THD = 10%Frequency response : 150Hz - 20KHz versatile connection to CD, DVD, MP3, MP4, mobile phone, notebook computer,ipod, PSP ... , and any common music players HM-8002 USB Multimedia Speaker System, Wooden Material, Rechargeable Battery, FM radio, ...