A speakerphone is a device that allows users to conduct phone calls without holding the phone to their ear. It uses a built-in microphone and speaker, enabling multiple people to participate in a conversation simultaneously. This feature is especially useful in meetings or group discussions, as it allows everyone in the room to hear and speak without passing a phone around. Most modern smartphones, such as those made by Apple and Samsung, come with a speakerphone option. Additionally, standalone speakerphone devices are available for home or office use, often providing enhanced sound quality and noise cancellation features for clearer communication.