This is a pendant that transmits a secret message in morse code by flashing an LED.
When you press the button the pendant flashes the message in morse code on the LED. You could use it it deliver a Valentine's Day message to a special person, send secret information, or simply as a conversation piece.
The pendant is powered by a 3V coin cell on the back. Press the push button to start the pendant displaying the message, and press it again to turn it off. Alternatively, the pendant turns off automatically after flashing the message.
