Technical specs:
- Driver type: 10mm single dynamic driver
- Impedance: 16ohm
- Sensitivity: 104dB SPL/mW
- Frequency range: 20Hz-20KHz
- Connectors: 0.78mm-2Pin
- Purchased from: Linsoul Audio for 49 USD


Accessories
You don't get much but what you get is "enough". When you open the box you will find:
- Pair of iems
- Cable
- 3 pairs of silicone tips S/M/L
- Carrying case
- And some paperwork: Instructions, warranty card and a quality certificate card.

Like I said both cable and tips are decent quality and they will do the job. Remember this is miles away from something what Blon will give us. Cable is thin and soft, doesn't have any memory and will not transmit microphonics. It has working and secure chin slider, and earhooks are bended more aggressively providing secure fit behind the ear. Maybe small thing but I appreciate it a lot.

Tips are more prone to change the sound than cable is, and they are responsible for good or bad isolation, that's why I would strongly suggest tip roll for maximum satisfaction. In this case tips will greatly influence overall performance, and it's very important to get this right because it may decide from poor to great sounding iem. My default tip that usualy fit best on most iems is Symbio W Peel they provide me best seal, isolation and bass/treble response.

Cable wise I decided on Nicehck 16-core high purity copper, cheap but great sounding and measuring cable. Don't ask me to tell you the difference sound-wise between stock and Nicehck cable that would mean I have to plug and unplug constantly, to me that's too much work and realy boring. This particular Nicehck cable has proven in the past to give very nice bass response and smooth treble. Let's leave it at that. Of course you may choose whatever option sounds best to you.

Carrying case is fantastic, it's minimalist and compact enough to fit even in jeans pocket and it will provide good protection for IEMs. Out of all 6-7 case styles and sizes I have bought in the past, this one is the best of them all.


Sound impression I'm basing upon this chain:
Tips: Symbio W Peel
Cable: Nicehck 16-core, high purity copper
Source: LG V50, Fiio BTR5, Earstudio ES100
Files: 320k, FLAC and Tidal MQA
Genres of music: I have included lot of different music, from very fast, busy, complicated Metal, to pop, rock, AOR, blues, ambiental, classical, OSTs, and bass heavy genres like synthvawe, and some mainstream EDM.


Note
Please pardon my ignorance this is just my poor attempt in reviewing an iem. You will figure out I'm not very good with words as I am not native English speaker nor am I familiar with proper audiophile jargon, therefore writing this took me lot longer than it would took someone with proper vocabulary and knowledge. Besides I'm just too lazy to learn.


Intro
Let me tell you a short story. Friend of mine asked me to recommend him good budget iem. He is not yet fallen into this rabbit hole and doesn't have any experience with portable audio, but I knew what he wanted, in short basically he wanted what I wrote in pros. My first response was, mate you don't want anything budget because what you want exist only in 150 usd range at least or more. I understood he didn't want to spend that much on his first serious iem, and at the moment we're not living in the same city and country so i couldn't just let him try something from my collection to see where he stands, therefore I had some homework to do.
Out of everything I had and heard previously nothing was good enough and everytime I thought he might like this iem something was missing. The best option at the time was Tin T2+ I figured it's cheap enough, with decent build and sound quality... I told him, get it mate if you are in a hurry but be aware this iem is not without its faults, but it's good enough and it's a good starting point. Or if you can wait little bit more there is one new iem, it's just been released and it's getting positive reviews, I'm also interested in it, let me order it and I'll get back to you.
Reason for this intro is that I finally found perfect iem for him and everyone else who is just starting the hobby. He being my very good friend I cannot recommend him anything, this iem needs to be special, and if I can influence someone to buy 1 iem and be happy for a while (at least), that would be a BIG WIN, no pun intended. Tripowin TC-01 can easily be that 1 iem.

Build quality fit, comfort and isolation
First of all they are very beautiful, shiny, smooth and pleasant to the touch. I got the silver variant but now looking at some pictures online I think I should have gone for the purple ones, they are surely eye catching.
Built wise they will give you that impression of quality due to thier weight and finish.
They are constructed from all metal shell with nice weight, they are not too heavy nor too light. Shell is not the smallest and it's designed to fill the ear (depending on the size) quite nicely providing excellent passive isolation. When I say excellent I mean it's much better from something like Blon or Tin Hifi offerings, and not as good as non-vented all BA resin shells/designs.
The part of the iem that touches concha symba and concha cavum is machined nicely and fits very well. During my testing time I didn't have any fit issues or need to adjust the fit, no matter what I did with my head they stayed securely in place. It's worth to mention at least in my case they don't protrude out of the ear at all, they sit flush with the ear which makes them very good option for sleeping while listening music if that is your poison.

Overall tuning
If I have to categorise it I would say this is balanced V or W shapped tuning because I cannot hear any recession in mid range on contrary, along with bass and treble mid range is also nicely elevated with beautiful timbre and tonality. For me tonality is more important than technical performance, e.g. I can close an eye for less than ideal separation or soundstage but I cannot for poor tuning. In reality if I want fast, technical and detailed IEM i will choose something more expensive and/or all BA set like my Fearless S8F. Or if I want good soundstage I'll probably go with my grado-mod Koss kph30i. This iem is not designed for that, but it doesn't mean I cannot or will not enjoy it. Technical performance of TC-01 is great though, soundstage doesn't feel closed in, imaging is on point, separation as well is not bad at all and will only fall short when compared to much more expensive iems.

Bass
If anyone is asking me this is a bass-head iem, take this with the grain of salt because I am not a bass-head. Meaning the quantity alone, anything more than this it would be too much for me and It probably be too distracting. In one hand bass quantity is perfect for outside use. When I'm out and about I want that extra punch that's usually drowned out by the outside noise. And in other hand sometimes with some genres and songs it can be little too much, and that is only when I'm listening fastest and busiest metal tracks. Majority of metal will sound fine, other genres and bass heavy genres will sound fantastic. This is typical budget DD bass, its not as refined as something like Fiio FD5, it doesn't have control, as fast attack and decay, it cannot separate fast bass notes as well as FD5 but in reality I cannot expect it to, between those 2 iems DD technology is different and price difference is huge. TC-01 sub bass extends very deep without any roll-off and mid bass doesn't bleed into the mids. Whatever the volume i didn't hear any bass fart, bass rumble always stayed in control. For the price I realy cannot fault it, bass texture, warmth, punch and ability to move air is very satisfying.

Mids
In the case of low mids I have nothing much to say other than they are done correctly. Bass is clearly separated from lower mids, I didn't detect anything wrong in the tuning. There is nice body and tone weight. Both male and female vocals sound rich and forward. Warmth, timbre and overall coherence across the range is remarkable, it is a true representative of beautiful tuning.
I have to say few words about high mids, and 2-5k range as it is very important because it will make or break an iem for me. Let me get one thing straight, I am not sensitive to high mids or treble if the peaks are within tolerable limits. Everyone have different threshold and I like that area elevated because I'm associating clarity, detail, open airy sound to it. TC-01 has plenty of energy in 2-5k area and I love it, anything less there is a big chance I won't like it. I have tried some iems with few db less in that area and like i said I want to feel my music, I want it to move me, to be alive and engaging, I don't want go for volume button if I'm missing something.

Treble
Treble on TC-01 can compete with much higher priced IEM. They won't be detail monsters but will provide sufficient amount of information up there not to feel dark or rolled off.
What is important? To me not to be sibilant or harsh. Even though treble is tuned on the brighter side i don't find it harsh at all, and I cannot complain about it even if I wanted to. Since not all music is recorded equally more sensitive ears might pick up occasional sibilance or splashy symbal here and there and that's only in very brightly mastered tracks which already show that, TC-01 won't hide it, but majority of music will sound just fine don't worry.

Conclusion
Did I mention this IEM costs 49 USD? My friends this is very good deal. Do I recommend it? Well isn't it obvious? But don't take just my word for it, this is just one man opinion.
Chi-Fi and IEMs in general have come a long way since early days, every year we are witnessing better and better IEMs and this level of price to performance few years ago was unthinkable for me. Granted we had many good IEMs in the past year or two alone, but as I mentioned in my intro, out of all of them i had opportunity to try all of them had something I would consider not great. I don't claim TC-01 is best IEM in the price range, I don't know what is out there, competition is very strong nowadays but for me they tick all the boxes. In the end I will continue to use it, and it will be my second beater set along side with T2+. For more critical listening I will use something else, and for relaxing time, work... or simple smile TC-01 will do more than just fine.