Is an announcement microphone.
Is a microphone for announcement.
Wireless IR Microphone Infrared Wireless Microphone Set - prevent the receiver from disturbing the neighboring room signals - Prevent internet signal interference Or telephone signal - Can be used by users to carry with, therefore is personal to use - Prevent hygiene problems from sharing equipment
Is a dynamic handheld microphone There is a built-in switch with a microphone cable length of 4.5 meters or 15 feet to connect the audio system.