Objectives: This study investigated the impact of parental device use on parent-child relationships, including contrasting reports of electronic device use, attachment, and children’s behaviour and feelings. Design and Measure: A cross-sectional design was employed. A children’s questionnaire was developed to gather insight into children’s perspectives of their own device use, their parent’s device use, as well as the impact of parental technoference on the parent-child relationship. Parental technoference refers to interruptions in interactions between parents and children due to parental use of an electronic device. A parent questionnaire was also developed, mirroring the children’s questionnaire, to examine the differences in perspectives of parents and children on device use. Children completed the questionnaire in school, while parent questionnaire were distributed home. Participants: A total of 173 children aged 8-11 and 91 parents completed the questionnaires across 12 schools in Wrexham and Flintshire, North Wales. Data was collected between March 2019 and June 2019. Results: Parental technoference was inversely associated with children’s perceptions of attachment (p = 0.031) and positively associated with children’s perceptions of their own internalising (p = 0.006) and externalising behaviour (p < 0.001). Both parents and children did not deem meal times, times doing activities, or times walking together as being problematic times for device use. Both parents and children agreed that they were both most likely to use devices independently when at home together. Out of four listed occasions children reported that parents were most likely to use a device when together during their conversations, as compared to when being picked up from school, doing activities and when eating meals together. Conclusion: This evidence provides support that parent’s use of devices have been found to interfere with parent-child interactions during middle childhood. The findings of this study contribute to the emerging evidence base of the impact of parental use of electronic devices, and could inform public health policy makers and professionals in developing more specific guidelines for parents on their device use in the presence of their children.