Tennmak Dulcimer & Porcelain simple review

I got these two IEH(In-Ear Headphone) from Mr.Tony of China via Ali-Express. Mr.Tony (Tennmak is a trade mark & name of hist company) – He was gave it to me for testing and little review, so I don’t have perfect packaging. Each different two IEHs are Dulcimer and Porcelain – It seems to like weapone names in Skyrim, but I could find what it meas by google translate.



a musical instrument with a sounding board or box, typically trapezoidal in shape, over which strings of graduated length are stretched, played by being struck with handheld hammers.



a white vitrified translucent ceramic; china.

 Each of Dulcimer & Porcelain are little bit different position of Tennmak IEH series. Dulcimer is positioned on about 30 USD, and Porcelain is about 20 USD. But as my opinion, I love Porcelain more than Dulcimer, actually sound quality in price is better to me, specially include design of itself.

According to Tennmak, Dulcimer was designed for maximum experience for quality of IEMs in around value of 100 USD. But it is just seems to their assertion, It is definitely not be better than high valued IEM – such like used multiple BA units – in manufacturing, design, publushing prices. It may just like placebo effect – like a memory of LG G Pro IEH.

Dulcimer detailed images



Dulcimer frequency response graph looks much nice, but my hearing is not like graph, bass more expanded and crispy high is closer to V-EQ. not flatty.  Porcelain is more flatty rather than Dulcimer.

Porcelain detailed images



Porcelain graph seems also similar like Dulcimer, but hearing is not like, more flatty than. But manufacturer graphs are not be sure in difference of hearing experience.


If I have make it choose one, my choice is Porcelain. Design, comfort, price and hearing is more better than Dulcimer. Sure all of my review is depends on my experience, not for objectivity.


About 2 more weeks ago, I have interested in new cheap IEM(or IEH) as debut to 600M from Remax in really nice price under 30 USD ! So I have to try this.


It actually took over 2 weeks and few days from China to South Korea. Packaging was looks nice. It structed with hard papers. There’s a striped design in each end of corner looks like German flag.


I can see magnetic buttons to hold cover in well closed and be ensured. I can give five of five to score on packaging. It is much better than other Chinese cheap products.


600M body, itself is much small as like my old friend UE-700 (see below). But it may be better than UE700 for durable because each connection and cable is seems much stronger.


600M basically provides each different sizes of silicon tips for choose comfort in your ear. I was impressed in this kindness.


Theres’s totally 6 pairs tips, and one is latest version of foam tip. It is really feels moistured and so so comfort to fit on my ear! Carrying pouch is too small to keep 600M in safety, but it’s OK for price. Actually I don’t care bundle carrying pouch.

Now hearing. It’s seems between of GreenHouse GH-ERC-DMS and UE700. Bass is more heavy and Treble is little less than real flat IEM. Actually there’s no shiney hi-hat but powerful drum and performanced hi-hat. I just wanted imaging shiney hi-hats, but it was my hope. But I guess it may better than other sensitive IEMs in outdoor. Durable cables my resist from dead.

And plus more, there’s a point of weakness in 3.5 pi plug. It has I-type plug so you may need make it durable by using shrinkable tube to hold whole plug and cable from bending death.

It was totally better than previous other producer’s one – Earmax ER610. If you are looking for economic twin BA IEM/IEH for under 30 USD, It may an answer for good try.

Fitbit dongle …


I have two of this dongle for Fitbit, for me and my wife. And we are using iPhones to synchronizing datas. Actually it doesn’t works well in Windows 10 !

So I checked what it used driver for works as :

What is this …? HID ? Wow, it is not bluetooth dongle but works as bluetooth in radio.

Maybe it is a junk to me for now … I will debug this device in Linux.

Recovered from unstable reboot.

My server didn’t wake up again after auto reboot mechanism.

It seems to be a reason of SOFT-REBOOT a.k.a FAST REBOOT.

So I adjusted it to DEEP REBOOT for every day with automated backup.

Hope my server keep going for more years … or, use a new Chinese budget smartphone to make it ?


Ulefone Paris X coming again.


This little iPhone6 like cheappy smartphone taken too long for order again in AliExpress ‘cuase Chinese new year holyday. It was too long days for wait.

Now it is going to shipping by DHL from china, may take more longer than before because there’s may extremely delayed packages in there for be shipped to the world.

However, It seems to be come to me for next week.

Then, I will test it for my old Paris.