Eartec - Sets EPak + Casque Pro Bluetooth Composition:Set of 6 They also include a septagonal

They also include a septagonal ear cup design that is so unique that it has received official patent protection from the United States Trademark Office

Replacement ear cushions for UltraLITE headphones

hands-free voice communication

Data techniques

RF Access: Time Division Multiple Access (TDMA)

Eartec - Sets EPak + Casque Pro Bluetooth Composition:Set of 6 They also include a septagonalIP 65 certified Water resistant E Pak, a custom digital cordless that provides a simple sound solution to meet the communication needs of demanding environments. The compact full duplex transceiver E Pak offers simultaneous hands free communication and also includes a second RF module that allows the use of lightweight Bluetooth wireless headsets. The digital transceiver weighs less than 30 grams, can be carried in a pocket or attached to clothing,