This paper examines the reports on the selection criteria and the post-operative performance of 25 children implanted with the Neurelec Digisonic SP. This study reported benefits from Neurelec Digisonic SP cochlear implant in auditory and speech perception outcomes. There has been a lack of studies into the additional factors such as level of the mothers' education and bilingualism, which is a factor that may have a significant effect on the success of cochlear implantation. This paper examines the reports on the reasons for the differences in performance and the post-operative performance of 25 children implanted with the Neurelec Digisonic SP. Meaningful Auditory Integration Scale and Meaningful Use of Speech Scale questionnaires were used just before 3, 6, 12, and 18 months following implantation. Electrode array was inserted without difficulty in all cases, with no complications to date. This is a retrospective and cross-sectional study and all the data were collected between March 2010 and December 2012. Auditory performance improved over time for up to 12 months after implantation. Our experience indicates that the Neurelec Digisonic SP cochlear implant system in children under the age of two is relatively safe and reliable. The Neurelec Digisonic SP device surgery can be performed without complications. Auditory performance results support the effectiveness of early implantation. These important findings further support the importance of professionals working very closely with parents or especially mothers and enhancing their involvement in achieving therapy goals to develop auditory skills and speech in young children following cochlear implantation.