Mr Machini said he was treated and later fitted with hearing aids but he continued to lose his hearing capacity.
The judge observed that a medical assessment report confirmed that the complainant had lost his ability to hear as a result of the prolonged use of headphones.
Safaricom may be compelled to compensate a former employee who allegedly lost his hearing capacity due to the nature of his work.
A High Court judge has allowed Mr Cyrus Machini to sue the leading mobile network operator after a medical assessment report from the Health ministry confirmed that he lost his ability to hear following prolonged use of headphones.