[Samsung Galaxy Note 10 Questions & Answers] KruseLudsMobile:
Sure -

The signal used for traditional speakers (including tiny ones in earbuds) use an analog electrical signal which as it fluctuates through a coil of wires, causes a magnet in the middle of that coil to move back and forth. A flat funnel-shaped cone attached to that magnet also moves and forth and the way it moves the air creates the sound. This analog signal (which looks like a wave) is very inefficient for transmitting or storage in electronics. Therefore information (as well as sound) is handled as a digital (meaning on/off only rather than a fluctuating (analog) signal).

So somewhere in between the sound (analog) and the source of it (digital) is always a very simple electrical circuit called a DAC (Digital to Analog Converter).

The earbuds that come with the phone in this case accept a digital signal at the connection point and actually already include a DAC somewhere before the tiny speakers that play into your ears. Essentially without realizing it, your expectation was that the DAC was already in the phone circuitry somewhere before it reaches the jack into which you are plugging your earbuds (most earbuds do not have a DAC and the two you tried do not either).

This situation annoyed me too, I am one of those folks that wanted to keep the 3.5mm headphone jack.

However, these DAC (Digital to Analog Converter) circuits are very tiny - and cheap too!

So, I was looking for an adapter/splitter that would let you plug in both a 3.5mm headphone jack AND a USB Type C cable from a charger. I also bought an in-line meter which allows you to measure the power being fed into the phone to make sure any third-party charging related accessories are providing the correct power to the phone for fast charging. I did not know these even existed until recently. You really have to have it because the new high speed and high power charging standard - which is further complicated because Samsung adds a slight twist of their own to the standard - requires a special kind of conversation between the charger and the phone being charged. Most older (even high quality) cables won't work properly with it, and you phone will charge with this - but only MUCH more slowly! I will leave a link to the meter for you below. I bought two different dongles/splitters but returned them because the power they supplied to the phone was lame to say the least. Then, I stopped looking - because Samsung posted a warning that they may damage the phone or earphones with high-powered chargers going through such dongles. That announcement was on the Samsung Members app which everyone should install from the Galaxy Store. See the attached pictures of the warning.

There is an adapter (USB Type C to 3.5mm Stereo) offered by Samsung but when I looked they only had white. I bought this instead in black - very heavy duty braided cable - and it works perfectly. Therefore - this adapter includes a DAC - which is compatible:

USB-C to 3.5mm Headphone Jack Adapter, USB Type-C to 3.5mm Adapter Nylon Cable [DAC Hi-Res] Compatible with iPad Pro New 2018,Pixle 2/XL/3,HTC,Samsung S8/S9/Note 8 https://www.amazon.com/dp/B07RMY3V9D/ref=cm_sw_r_cp_apa_i_6I7EDb2JHJA9J

Here is the meter you need (I will include some photos of the meter as well because for a small amount of money it really is an amazing device!):

MakerHawk USB Power Meter, TC66 USB Tester Type C USB Voltage Meter and Current Tester, 0.96 Inch IPS Color LCD Display Power Tester Multimeter PD Ammeter Voltmeter QC 2.0 3.0 https://www.amazon.com/dp/B07NXRPNPR/ref=cm_sw_r_cp_apa_i_gY7EDbMG2NHRX

Man, I am such a geek... LOL! I hope this helps!

P.S. - if you do want to just buy other earbuds without any adapter needed - just be sure they include a DAC and you should be good to go!View attachment 4819058View attachment 4819059View attachment 4819068View attachment 4819072View attachment 4819075View attachment 4819076