font color="blue"strongRetail-Ready:/strong/fontEach piece, package, box, or polybag with header bar coded.Plastic Blue Flashing Mini Beacon Light. A rotating light with an on/off switch on the base. (1 pc./DB) 3 1/2" x 4 1/4" Requires 3 AA batteries, not included. Can be used with AC/DC adaptor, not included. Includes instructions.