Performance

The HiFiMAN TWS600 is their first stab at a set of high performance true wireless stereo in-ears, and they definitely manage to be true to HiFiMAN's reputation. First of all, these in-ears sound great for the price. Currently, the TWS600 is sold at what is a bargain price of $99 (originally $199).

Tuning-wise, these in-ears are well in line with what we have heard with recent offerings from HiFiMAN. The bass is solid, and while not exaggerated like many, it goes deep and still has good presence without overshadowing the lower mids. For in-ears, 2+ dB more from under 100 Hz would probably be more in line with recent findings on ideal curves, but HiFiMAN voids that trend and continues with what is perhaps more accepted by the more critical listening crowds. Bass extension is good down to what is audible and could do with a small bump in the lowest octave for electronic music. For other generes the tuning is great.

The midrange is precise and flat. No obvious coloration or artifacts in the lower region due to excessive DSP manipulation. Imaging is not great, but generally on par with the RE-600 and RE-400 from HiFiMAN. The TWS600 does a better job at providing an out of the head sound compared to the Jabra Elite 75T, but that is probably due to a few odd choices in the tuning of the 75T. That having been said, the sound stage is still very left-right without any significant depth to it. This is, however, very common for in-ears regardless of type.

The noise floor on the TWS600 is on par with the 75T in that under normal listening circumstances, you do not notice it at all. Noise attenuation on the TWS600 is pretty good if you have a good seal. The TWS600 is marginally better at blocking outside noise than the Jabra Elite 75T, but also feels more occluding. Once you find the right tip, the TWS600 is perfectly comfortable to wear for extended periods of time. The main difference is that the 75T earpieces sit slightly better aligned inside your concha, which makes them feel more suited as exercise headphones.

The TWS600 in-ears are made for use on the go, and the carrying box, while not the most stylish, definitely does the job. It is small enough to fit in normal pockets to provide power and protect your in-ears when not in use. Opening the box is slightly trickier than on other TWS in-ears we have played around with. This does mean the carrying case is less likely to open accidentally, but I do not think the trade off is optimal. One other note on the charging case is that it does not support all tips as some prevent the charging pins on the earphones to touch their counterparts in the case.

When it comes to call quality, they are alright—the Jabra Elite 75T has a tendency to produce less noisy output, but across different scenarios, the difference is not that big. If you use your headset for a lot of calls in noisy environments, the Elite 75T is definitely better, but also way more expensive.