| with Voice-Change comprises the earphone, microphone and control module. As using as the general hand-free earphone by connecting to all kinds of phones including cell phones and wire/wireless phones(connection jack is the option), You can directly listen to your changed voice to 7 kinds of tones(adjustable) using the attached microphone and talk with others over the phone. If you don't want to let others recognize you over the phone, with VOICE-Change will be the excellent secretary.You can listen to and speak your own voice without recording. Then, with VOICE-Change gives the remarkable effect in correcting the pronunciation, memorizing lyrics and practicing the sound as simultaneously listening to your own voice and comparing it to the original sound from a sound device.with VOICE-Change is also used as the earphone for language study because foreign songs are very helpful for learning foreign languages. | 
