As the number of hours people spend at home increases, there are more and more people who want to stream themselves singing or playing. This time I would like to introduce a method that will allow even beginners to easily record with a smartphone.
Level 1
High quality sound with just a smartphone and earphones (or headphones)♪

First of all, the sound quality will be a little higher with just by using earphones with your smartphone when you record. Of course, you can record without earphones, but if you do so, the sound source that you are singing to or playing with will be included and noise will increase. You might also try using earphones with a microphone. (The picture is SONY / MDR-EX15AP W)

*By the way, recent iPhones have a Lightning terminal, so will also need a conversion plug sold separately.

Level 2
Let's improve the sound using a microphone ♪
Next, just add a microphone to Level 1. Built-in smartphone microphones are limited in that they are for the purpose of calling. So the sound quality of your recording changes considerably just by adding a microphone. Here we introduce the easy-to-use microphone IK MULTIMEDIA / iRig Mic HD 2. (*For iPhones)
■ IK MULTIMEDIA / iRig Mic HD 2

As you can see from the image, you can easily record by just connecting it to the iPhone and plugging in earphones, so it is easy for beginners ♪
Level 3
Use an audio interface to make your recording even more authentic♪
Lastly, I will introduce recording using an audio interface that will allow even beginners to record in earnest. Here I’ll talk about the highly-recommended TASCAM / iXZ audio interface.
Connections are simple.

Connections are simple.
Just simply connect smartphone → audio interface → microphone. Also, becuase the iXZ has a stereo mini jack, you can also connect earphones or headphones.

* If your iPhone has a Lightning terminal, you will also need the conversion plug introduced earlier.
Extra edition: Recommended recording app for beginners [nana]

Have you heard of the app called nana that is popular with young people in their teens and twenties? This is an app that allows you to easily record and collaborate with others. You can easily sing by recording your own voice on a karaoke source recorded by another person. Of course, you can also record the accompaniment and provide that to others.
The particularly great thing about this app is that there are many types of effects (some are only for paid members), and you can create high quality sound sources without a mixer.
This time, I introduced equipment recommended for easy recording for beginners. Why don't you take advantage of your self-isolation and try streaming?