word-request
On the internet, I found the terms "two-way radio" and just "radio", but the first sounds a bit too technical, and the second might be mistaken for the radio used to listen to music, mightn't it?
So, to make a couple of examples:
The police officer took out his … and called for backup.
The police officer reported the scene on …
Seeing as it's medicinal in nature, I'd say it was a bottle, or more specifically, a pill bottle.
If it were a liquid medicine on the other hand, I'd refer to it as a vial.
If I were to be more generic, I'd simply refer to it as a container.
Edit: This is a container for another, similar Tesco supplement (in this case it's a multivitamin container)
The manufacturer refers to the container as a bottle.
At your request, I will say that Ssav's answer is the one I would select. This is because the word hearer, though it is perfectly correct, sounds awkward to me. Stoney is not wrong at all, this is simply my own preference.
John spoke to Mary. He spoke and she listened.
The speaker noted that the flowers were beautiful and his listener thought that he was right.
None of these are examples I'd use in writing, however. It just sounds strange.
When John/he spoke, Mary/she listened intently.
If Mary was another man, then he and he could not be comfortably used.
While he spoke, Mark listened.
I am not at all sure I've added anything that helps.
"a) You have to always know your second person (the person you are talking to) and speak accordingly.
b You have to always know your spoken to (the person you are talking to) and speak accordingly. [It sounds a bit odd to me.]"
should be, imo:
You have to know your listener (but audience is better) and speak accordingly.
You have to know your audience and speak their language.
You have to know your audience and speak to their level of knowledge/expertise.
Audience works better and can absolutely be used even if the audience IS one person.
Best Answer
You're right that "two-way radio" sounds too technical and specific. That over-specificity is superfluous in your two examples for a single reason:
We know what type of radio the officer is using because of how they interact with it.
In Examples 1 and 2, the officer is doing something to the radio that is only possible if the radio is a two-way radio. Because they used it to 'call for backup' (Example 1) or 'report the scene' (Example 2), the radio cannot be a music radio. People don't call for backup on a music radio.
On another note, your concern would be more appropriate if the only thing we knew was that the officer was listening to "the radio."
That's ambiguous. The "someone's voice" here could be that of a fellow officer (on a two-way radio), or it could be that of a disc jockey (on a music radio).
In this new example, using "two-way radio" would be appropriate because it would address the ambiguity.