Function: USB keyboard ,support storage disk(SD,TF, Flashdisk),support computer, Mobile phone MP3,MP4 etc Rotatable Folded Keyboard Speaker Operation Manual• Use keyboard to type e-mail information and memos, control volume and so on.• Connect to computer USB port with supplied cable.• Connect to computer, mobile phone, MP3, MP4 and other multimedia to listen to music with standard audio cable.• ...