Apple earphones are used on MP4, and the volume can be adjusted

1.No, MP4 can only receive and output left and right channels.

The full name is MPEG-4 Part 14, which is a multi-** computer file format using MPEG-4, sub-file name MP4, which is mainly used to store digital audio and digital video. In addition, mp4 can be understood as mp4**, mp4** is a set of audio, **, **browsing, e-books, radio is equal to one of the multi-functional **.

4.of the task. The DSP is responsible for the data transfer of the Walkman, the control of the device interface, the decoding and playback of files, and other activities.

Classical** akg; Pop vocals, symphonic Audio-Technica & Sennheiser; Black** Devil's Voice.

This report is their most recent blog post (the most recent one, at the top of the box blog). This is an analysis of the choice of digital products. It's still quite referential.

1.This is the button on the speaker is loose, friends with this problem can try to press the shell on the back of the home button, you can eliminate the problem that the speaker does not make a sound.

2.The speaker cable is loose, teach a stupid way, find a rubber mouse pad, and then use the speaker end to hit a little hard until the sound comes out, try slowly, and it will be successful.

Apple went public on December 12, 1980, and in 2012 it set a record market capitalization of $623.5 billion. On July 20, 2016, Fortune released the latest Fortune 500 list, and Apple ranked 9th; In October of the same year, Apple became the No. 1 of the world's 100 most valuable brands in 2016. In February 2017, Brand Finance released the list of the world's top 500 brands in 2017, and Apple ranked second; On June 7 of the same year, the 2017 Fortune 500 list in the United States was released, and Apple ranked third.

Shutdown and restart will do.

iPhone Adjust Volume:

1. Slide up from the position at the bottom of the screen, adjust the speaker, and move left and right to adjust the sound size.

2. Click Settings.

3. Tap Sound.

4. Swipe left and right to adjust the volume.

Mine is the same kind of problem. Just reboot.

Apple headphones and interfaces are another set of standards, but if there are ordinary headphones plugged into the Apple phone, it will automatically switch to the access method of the standard of ordinary headphones. However, other mobile phones or devices are only equipped with ordinary headphone jacks, so the Apple earphone remote function is incomplete or problematic or unrecognizable or the sound is problematic.

In-line control method and function of Apple headphones in standby state:

3. Quickly press the ** button three times to return to the previous song.

6. Press the "+" or "" button to adjust the volume of the Apple phone.

It shouldn't be, it's easy to break the headphones by repairing them yourself, so you can let someone from the Apple store take a look.

There are two ways, one is to buy a headset with an adjustment function. This one is relatively easy!

The second is to buy an adapter cable or extension cable with the function of adjusting the volume. I haven't been looking for this difficulty for a long time before.

There is no way.

I'm struggling with this as well.

My headphones come standard with volume adjustment.

But when you plug it in, it doesn't work.

However, you can try removing the peel and plugging in the headphones to turn up the volume.

I haven't tried ==).

1.Yes, you can listen to songs by plugging the headphones directly into the green jack on the front of the case, but they can't support voice function.

3.Plug in the audio output in red, plug in the microphone in white, and plug in the headphones in black.

Shut down and restart the iPhone to adjust the volume: 1. Slide the bottom position of the screen to adjust the speaker left and right to adjust the sound 2. Tap to set 3. Tap the sound 4. Swipe left and right to adjust the sound.

Shutdown and restart will do. iPhone to adjust the volume: 1. Swipe up from the bottom of the screen, adjust the speaker, and move left and right to adjust the sound volume.

2. Click Settings. 3. Tap Sound. 4. Swipe left and right to adjust the volume.

Is it all done? I'm having this problem with my headphones, I'm so sad.

It's not certain, maybe it will, or you try it, or your headphones are bass-heavy, and bass-heavy headphones are going to be smaller.

If there is a problem in the jack, you can go to the store to repair it.