... variety audio formatsIt is a Karaoke player, it is a mp3, it is mp4, it is card reader, it is a digital ablum, ... a variety of electronic productsLoudspeakers, such as PC, Nb, MP3 player, Mobile etc.Digital time,Calendar and clock functionsCard readerMaximum supports ... 500mA-1ADemensions: 140*31*32.3mmNet weight: 190g Mini Karaoke Player Earphone With MP3 MP4 TF Card Reader Digital Album Audio Speaker