The handset incorporates audio technology that optimizes the frequency range based on a user's age, making it easier to hear the voice of the person on the other end of the call.

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The DA-F60 incorporates neodymium magnets and a passive radiator to produce results typically found in high-end Hi-Fi audio systems, including tuned low-frequency reproduction and virtually no distortion even at high volumes.

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This enables the HDVD 800 to transmit the entire frequency spectrum of high-end audio sources without any loss of frequencies.

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And Project SHIELD provides fidelity and dynamic range never before available on a portable device, through its custom, bass reflex, tuned port audio system -- with twice the low-frequency output of high-end laptops.

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The H9080 functions via a reliable 5GHz wireless transmission frequency to ensure the headphone reaches 6Mbps wireless bandwidth and up to 10m high-quality audio transmission.

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The service, which streamed audio and video (both live and recorded clips) to mobile devices, was specifically designed to run on a frequency separate from the one used for calls and data.

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