A hand weight with a central grip area and contoured opposing weight portions at the ends so as to convey a \u201cZ\u201d-shaped profile. The shape of the protrusions of the end portions prevents the visibility of the first area to a user when the compartment is in an unexpanded configuration. The light passing portions communicate with each other. The one or more processors may receive a request to broadcast the video streams and the audio streams from one of the participant devices.