Only 1-way Communication

I bought this to extend the range between my iPhone and earphones. It does not work for that application. It can be arranged to send OR receive, not both. It is a bit deceptive for the manufacturer to claim that it is a "Bluetooth Transmitter and Receiver". It is a Bluetooth Transmitter OR Receiver. So, if you are far from your phone (I forget mine in my office frequently), you can hear that a call is incoming, but you can't pick it up by pressing your earphone, and if you could, you couldn't talk. This limitation should be included in the posted information.

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