Counties Manukau District Health Board children have high rates of unrecognised hearing loss and ear disease, affecting about a quarter of two to three year olds. Newborn hearing screening detects permanent hearing loss at birth but can miss later hearing loss associated with ear infections and glue ear, and progressive hearing loss. NZ children have their hearing tested at age four, in preparation for school. By this stage children with ear/hearing problems may have significant speech/language or other delays if they have not been treated. This research will assess feasibility of objective hearing testing at age three, in preparation for a future trial assessing whether screening at age three improves outcomes compared to the current four-year-old screen.