... .support TF/usb card 4.for MP3/MP4,laptop,computer,mobile 5.OEM welcome Power5W RMSPower SupplyUSBAudio output3.5mm audio cableInput ... and is used to furnish audio frequency for PC,music mobile phnone,Mp3,Mp4,CD,palm players and other portable fixtures ... :50PCS/CTN CTN size:375*246*348mm G.W.:25KG 2012 newest portable usb vibration speaker