Visual communication involves transmitting information visually through means like posture, gestures, movement, and color. In business, visual aids like graphs, diagrams, photos, videos, and animations can explain lengthy subjects quickly. Whiteboards, charts, and electronic visuals are commonly used visual communication tools that help explain concepts during presentations. Audio communication transmits information through speech, sounds, and voice via devices like microphones, speakers, voice recorders, and mobile phones which facilitate internal and external business communication on the go.