maikeueseo baeteorireul ppaesseo.

In this sentence, 에서 marks the source or starting point of the removal.

So 마이크에서 배터리를 뺐어 means the battery was removed from the microphone.

Learners often first meet 에서 as meaning at / in the place where an action happens, but it also has another very common use: from, out of.

For example:

• 가방에서 지갑을 꺼냈어 = I took the wallet out of the bag.
• 주머니에서 손을 뺐어 = I took my hand out of my pocket.

Here, 마이크에서 works the same way: the battery came out from the microphone.

Normally, no. With 빼다 when you mean remove X from Y, Korean usually uses Y에서 X를 빼다.

So:

• 마이크에서 배터리를 뺐어 = natural

But:

• 마이크에 배터리를 뺐어 = unnatural / incorrect for this meaning

A useful contrast is:

• 에 is often used with verbs like put in / attach to / go to
• 에서 is often used when something comes out of somewhere

For example:

• 마이크에 배터리를 넣었어 = I put the battery into the microphone.
• 마이크에서 배터리를 뺐어 = I took the battery out of the microphone.

So 에 and 에서 can create an opposite pair in this kind of situation.

를 is the object particle. It marks 배터리 as the thing being directly acted on.

So in this sentence:

• 마이크에서 = from the microphone
• 배터리를 = the battery, as the object
• 뺐어 = removed / took out

Even though the battery is coming out of the microphone, it is still the thing the verb acts on, so it gets 을/를.

In casual speech, Korean speakers sometimes drop object particles, so you may also hear:

• 마이크에서 배터리 뺐어

But the full form 배터리를 is clearer and more standard for learners.

뺐어 comes from the dictionary form 빼다, which means things like:

• to remove
• to take out
• to pull out

The form is built like this:

• 빼다 → stem 빼-
• past ending -었어
• 빼었어 contracts to 뺐어

So 뺐어 is the casual past form meaning took out / removed.

This is a very common kind of contraction in Korean. Another example:

• 세우었어 → 세웠어

So 뺐어 is not a strange special form; it is just the normal contracted past tense.

뺐어 is casual, informal speech. You would use it with:

• close friends
• younger people
• family
• people you speak casually with

The polite version would be:

• 마이크에서 배터리를 뺐어요.

The formal style would be:

• 마이크에서 배터리를 뺐습니다.

So the grammar is the same, but the ending changes depending on who you are talking to.

The subject is omitted, which is very normal in Korean.

마이크에서 배터리를 뺐어 could mean:

• I took the battery out of the microphone.
• He took the battery out of the microphone.
• She took the battery out of the microphone.
• We took the battery out of the microphone.

The listener figures it out from context.

In English, we usually need a subject, but in Korean it is often left unsaid when it is obvious or unimportant.

If you wanted to include it, you could say:

• 내가 마이크에서 배터리를 뺐어 = I took the battery out of the microphone.
• 그가 마이크에서 배터리를 뺐어 = He took the battery out of the microphone.

But in everyday Korean, leaving the subject out is extremely common.

Yes, to some extent. Korean word order is more flexible than English, as long as the particles make the roles clear and the verb stays at the end.

So these are both possible:

• 마이크에서 배터리를 뺐어
• 배터리를 마이크에서 뺐어

Both mean essentially the same thing.

The difference is usually about emphasis or flow:

• 마이크에서 배터리를 뺐어 puts the source first
• 배터리를 마이크에서 뺐어 puts the battery first

For learners, the original order is a very natural and easy pattern to follow: source + object + verb

They are similar, and in many situations both can work, but they are not always identical.

• 빼다 often suggests removing something that is inserted, attached, stuck in, or fitted into something
• 꺼내다 often means take something out from inside

With a battery, 빼다 sounds very natural because batteries are often thought of as something inserted into a device.

So:

• 마이크에서 배터리를 뺐어 = very natural
• 마이크에서 배터리를 꺼냈어 = also possible, especially if you focus on taking it out

A rough comparison:

• 플러그를 뺐어 = I unplugged it / pulled the plug out
• 가방에서 책을 꺼냈어 = I took a book out of the bag

For a battery, 빼다 is especially common.

Usually, yes. 빼다 often has a physical sense of removing, pulling out, taking out, detaching, or extracting something.

That is why it is commonly used for things like:

• 배터리를 빼다 = remove a battery
• 플러그를 빼다 = unplug / pull out a plug
• 안경을 빼다 is not natural, because for glasses you usually say 벗다
• 이를 빼다 = pull out a tooth

So in your sentence, 뺐어 gives the feeling that the battery was physically removed from the microphone, not just turned off or disconnected in an abstract way.

It is pronounced roughly like 빼써.

That is because:

• 뺐 ends with ㅆ
• when followed by 어, the sound flows into the next syllable

So although it is written 뺐어, the actual pronunciation is close to:

• [빼써]

This is one of those places where Korean spelling and pronunciation are slightly different, so it is a good form to get used to hearing.