The Endura ESM-27-TA1 two way radio audio accessory shoulder speaker microphone is equipped with Kevlar reinforced 5mm cabling, a 3.5mm audio accessory port, heavy duty strain reliefs, emergency button, high / low volume control, and a durable rotating clothing clip. The ESM-27-TA1 speaker mic is IP68 rated. Connects directly to radio for the most reliable two way communication. Perfect for Law Enforcement Police Officers, Raildroads, Schools, Hotel Personnel, Event Coordinators, Retail Stores, Security, Casinos, Manufacturing plants, Conventions, Nightclubs, and Concerts. Backed by a 1 year manufacturer warranty. Compatible with Harris Tait TP3300, TP3350, TP7110, TP8110, TP8115, TP8120, TP8135, TP8140, TP9355, TP9360, TP9435, TP9440, TP9455, and TP9460 two way radios. Replaces the T03-00045-ERAA and T03-00045-FRAA shoulder mics.