Light Up Beaded Necklaces are an electrifying way to throw down on Mardi Gras, St. Patrick's Day, or any occasion worthy of these killer beads. Features 6 white LED light beads on a string of standard round Mardi Gras beads. Clasp of Light Beads is a breakaway battery house for safety. To activate, remove the battery protector and press the button for 1 of 3 light modes: Flash, blink & steady. 3 AG13 batteries are included and replaceable.