If your laptop comes with a built in webcam, then it will likely also have a built in microphone. The microphone is used to capture audio. The built in audio is sufficient to make video calls, but is not recommended for professional audio needs. In that case, consider using an external analog or USB microphone.
1.2 Microphone – Laptop
1. Mobile Devices (220-1001), Comptia A+ (Plus), Comptia A+ (Plus) 220-1001
