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Abstract
Two low-cost "bug-in-the-ear" communication devices (a walkie-talkie and FM microphone) were subjected to performance comparison within the context of an analogue treatment environment. Seven dependent measures were employed, involving both subjective and objective evaluation between procedures. Results revealed significant differences betweent the two devices, with the walkie-talkie apparatus receiving higher scores on two measures of auditory clarity and two measures concerning subjects' ability to follow transmitted instructions. Results are discussed with respect to the practical advantages of the walkie-talkie "bug-in-the-ear" system.