iSpeech is designed for individual speech work. The device provides simultaneous control of the phonetic elements of speech, visual, hearing (residual hearing) and vibro-tactile senses. iSpeech allows you to visually control the change in pitch (frequency of vibration of the vocal cords), to differentiate the consonant sounds by sonority/deafness, to differentiate the nasal and oral sounds, to work on the volume, rhythm and fusion of words and phrases. In addition, the device allows you to identify the overt forms of rhinolalia and rhinophonia (the so-called "twang") and to correct this defect of speech. In addition to visual control of phonetic elements of speech, iSpeech provides auditory control of speech exercises. The work of both visual and auditory control of speech is supplemented by vibratory tactile control due to the connection to the device is a tactile vibrator.