Manufacture ODM,FCC,OEM CE,patent certificate Tiny and potable vibration speaker which made your table sing Aluminum alltoy Features.Round shape vibrition speaker .support TF/SD card mini speakerStrong penetrability and very less attenuation in long distancemini USB, Micro SD Card reader Audio source:PC,MP3,MP4,CD,DVD ,Mobile phone,etc Size: φ59.4*48.6mmAccessory:battery,usb cable,user ...