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KOOTION TT2 Portable Speaker Mini Speaker Sports Speaker Usb U-disk/tf Card/ Computer Mp3 Micro
9828 double color screen displayCan display timebattery powerand set alarm clock
Can recognize u-diskmemory cardand automatic step into music mode
Support mp3mp4mobile phonepcnotebook etc sound source equipment
Support Mp3WMAWAV format playSupport U-diskTF cardUSB 20 high speed transferCompatible with USB 11
Can play about 3-5 hoursthe play time depends on the volume