An EAS tag has an adjustable retention cable for attaching the tag to an irregularly shaped object. A clutch mechanism prevents the retention cable from being released without authorization. The tag may carry electronic components including a circuit board, microprocessor, battery, audible alarm generator, light emitting diode, anti-tamper switches, infrared communication port, and other communication electronics. The tag may also carry an EAS element such as a harmonic element or acousto-magnetic element. An EAS system with which the EAS tag is associated may communicate with the EAS tag and obtain information, arm, disarm, encode information, and otherwise reprogram the tag via the infrared communication port or other means.