KZ Zsn are on par with apple Air pods in my opinion. If you need even better audio still you can go for KZ ZS10 Pro or LINSOUL TINHIFI T3 Plus or even Dioko 7Hz x Crinacle.

2. Wired and Wireless use

Depending on your needs and battery level 😉

3. Replaceable Battery

Either by changing the whole Wireless Receiver or replacing the battery in the receiver. I have not done this yet, but it seems pretty straight forward according to this picture. In any case it is much easier than replacing batteries in Air pods or other TWS earphones.

4. Great battery life

About 8 hours without case.

5. Possibility to use without case

Physical buttons allow turning on and off the receivers without the need of the case. This is critical for me since I mostly carry them with me without the case. I only charge them overnight at home. Pressing the button for 7 seconds is a bit too long for my taste, however.

6. Integrated microphone

Receivers have and integrated microphone which is okay for their size and position but nothing special.

The only negative points from my point of view are:

1. There is a slight hissing noise if music is played at low volume

2. They stick out of the ears a bit further than most TWS earphones

After using them a view months I found that the earphones kept falling out of my ears if I moved around or did sports with them. I tried foam ear tips, but they did not work.

I had some old silicon ear tips with wings laying around, but they did not hold onto the KZ speakers. So, after these 2 prototypes the third and final version fit like a glove.

Already tried them while running for an hour without issues.

I will keep you updated if any problems occur.

Thanks for printing & feel free to remix.

Tagi

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