4. One-button alarm function: loud deterrence and far sound penetration DETACHABLE HANDHELD MIC: This compact director megaphone can hold the microphone up to your mouth and point the megaphone at any direction allowing for use both indoors and out Whether on the athletic field, road or in emergency response situations Choose a high-end product that's built to last 3. U Disk/TF Card Reading: Plug and Play Multimode Broadcasting This lightweight loudspeaker is ideal for announcing important messages at New Year’s parties, barbecues, birthday parties, sporting events and other occasions