Sony FA-WRC1M Operating Instructions Manual page 7

Communication distance
The communication distance between this product and the Wireless
Radio Receiver (sold separately) is approximately 30 m (98.4 ft.).
• The distance given above applies under conditions where there are no
obstacles, shielding, or radio wave interferences.
• The communication distance may be shorter depending on the
positioning of the products, the ambient environment, and weather
conditions.
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7
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