ParkerVision explains that its radio frequency processing is a novel technology for the cellular handset market and that its chipset is particularly well adapted for the size and performance specifications of 3G and 4G smartphones.

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Many shieldmakers claim to eliminate nearly all handset radiation a dubious assertion because that would effectively squelch the phone's radio signal.

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The handset, which also features a dust and splash-proof keypad and an FM radio, has been primarily launched as a low-end phone that would appeal to customers in the developing world who may have infrequent access to electricity.

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