Invisity In-Ear RF Receiver
June 01, 2007
Invisity is a narrow band RF receiver that is smaller than a lima bean and fits completely inside an ear. You can transmit instructions and other information to the user up to a distance of 820 feet away. Invisity has a battery life of up to 13 hours of constant operation. You can purchase an invisity transmitter from TEA or you can program existing portable radios from 200Hz to 4500Hz to work with the device.
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