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I wouldn't use any plug-in receiver. You've got all the disadvantages of wired without the simplicity/cheapness. Moreover modern BLE (not the classic) is incredibly good on batteries.
Besides a number of clickers that I no longer use, I have a custom built keyfob for my readers, a single foot pedal for in my backpack and the 4 button formerly BlueBoard (now YellowBoard) and the Infinity wired triple for my desktop.
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