This is the new and very hard to find Star Trek The Original Series Communicator w/ Sound Effects Prop Replica made by Playmates. To open the Classic Communicator, just grip the bottom, press the opening activation button and flip open the antenna grill! Press the frequency control or communication button to activate the light up emergency indicator or the frequency control indicator with sounds and phrases. Requires 2x "AAA" batteries, which come included. Comes new in a manufacturer sealed box.