Spectra Merchandising International IGFWT-325 is a pen shaped walkie-talkie that can be used for communication and writing. It comes with a ball pen that can be activated by simply pressing the ball pen switch and an earphone that can be plugged into the earphone jack for private listening. The device is powered by 4 standard LR44 batteries and has a microphone for transmitting messages. The power switch allows you to turn the device on or off, and the battery door provides access to the batteries for replacement.