USB cable UHF transmitter.When plugged to a USB port the cable works as usual and the transmitter inside the cable transmits conversations or any sound to a distant receiver.
No batteries needed. The transmitter works as long as it remains plugged to a USB port. Automatic Gain Control lets it pick up a whisper up to 40 feet away – as clearly as loud speech near it. (more)
Pretty much impossible to discover yourself just by looking. But, hey... that's why you keep our information handy. ~Kevin
