... singing anywhere I9 Self-singing Mini Karaoke Player for Laptop,Mobile phone,mp3,mp4 Product Description:Practice and improve your KTV singing ... you have time, take it out, plug it into your mobile phone, MP3 player, or computer and start singing away! The microphone ... connected before using the audio playback device (such as computers, mobile phones, MP3, MP4, MP5) into the required three-dimensional ...