CinQ is designed to test your teamwork and communication skills, so it is strongly recommended that you use a headset and microphone to communicate with your teammates using third-party communication software (Teams, Meet, Discord, etc.).
However, written chat is available throughout CinQ and will allow you to communicate with your teammates without a microphone and/or speakers/headphones.
Please note that if you use a microphone and do not wish to be heard, you can use the mute option (available next to the chat box) at any moment.