Cejay Engineering Phoenix JR. 123 Infrared Beacon Phoenix JR. 123 is 50% smaller and lighter than the Phoenix Jr. Infrared Beacon IR-14. Includes CR123 Battery and when not in use, the CR123 battery can be stored within the unit by installing the battery upside-down. Designed with the same functionality as the Phoenix JR. it has been equipped with a spring clip for easy attachment to belts, straps, clothing, and equipment. NSN: 5854-01-618-0390 Made in USA