Shoulder megaphone is ideal solution for applications requiring mobile sound reinforcement such as tour guides, product demonstrators and sporting events. Compact, lightweight and easy to operate. It has built-in 10W amplifier, cone speaker, detachable handheld micro-phone and pushbutton-activated whistle alert tone. Other features include two microphone inputs for optional headset and/or handheld microphones plus line input for CD player or other sound source. Eight AA batteries provide twenty hours of continuous operation with flashing low battery status indicator. Standby mode preserves battery life when using the external microphone or line inputs. An external AC input allows fixed location use.