The Haswah, a vital part of the mosque where thousands of pilgrims gather for prayer, is the main point of the upgrades.
The new sound system is expected to provide clearer and more consistent audio coverage, ensuring that the words of the imam reach every corner of the vast space.
Previously, the sound system stopped working more than twice due to heavy rains in Medina.
Officials have assured that the project will be completed with minimal disruption to daily prayers and other religious activities.
Special arrangements have been made to accommodate worshipers while the work is underway.
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