What are the two black mesh components on the bottom and middle frame of the charging case? September 18, 2025 11:17 Updated They are dustproof microphone mesh covers, designed to protect the microphones from dust and debris. Related articles What are the indicator lights on the charging case for that appear when I press the TALK button ? What does the TALK button on the charging case do? What is Walkie-Talkie Mode? What do the colours on the charging case mean? What is Static Spatial Audio?