... quality & competitive price Portable Gift Mini Speaker With USB/SD Card Reader: 1.Stereo sound effect, wonderful bass, sound beyond size,good ... control cable with built in sound card driver and amplifer circuit needed, easy to operate5.Support for laptop, desktop, MP3, MP4, ... music fromat audio files of TF card , FM function (frequency range :87.5-108 MHZ) Card reader function, audio line in and ...