Age of the Child is only 4 month, interweave delays are not very specific at this age.
Repeat a OAE at 6 month of age,
And keep an eye on the early speech development of the Child.
Next Steps
OAE
tympanometry after few months
Health Tips
Bera results vary from one centre to other, don't worry much about one single report,
it's a 4 month old child, hearing pathways are in developing stage.
observe for development of hearing and speech milestones