Wireless headsets have ceased to be a prestige product. I have decided to look at how the TDK wireless headsets work in practice, whether they offer good sound, whether they are functional or how they compete with performance in terms of performance.
The first impression The TDK WR680 box is quite standard (photo at the bottom left) – a typical combination of not too thick cardboard with elements made of thin, transparent plastic.
In addition to the headphones, we also have a plain black USB cable and a 1.2m mini flat-iron minijack-minijack with remote control and clip on it (bottom right). The latter will of course be useful when the headphone battery is completely discharged, and we will continue to listen to music or if we want to connect the WR680 to a device without Bluetooth.
For the test I received a copy in white and red, but the market is also available black and red WR680 editions.
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At first glance, the handsets look pretty good – the earmuffs and headband trim are soft and pleasant to the touch, and the red and silver inserts add elegance.
However, closer examination does not leave the illusion that we are dealing with the product of the base class. The materials used in the WR680 are cheap, can often be blown up, and (wrongly wrong) visually do not give much confidence in their durability – for example, I’m not convinced by the plastic guide roll height adjustment shown in the photo at the bottom right and the plastic rotary Fastening earpads to the headband.
Pretty headphones also operate on the bottom (bottom shots) – pressing the playback control buttons produces a loud, pleasant little hissing sound that is clearly audible inside the ear.
The WR680 includes a USB charging port for the device, a charge / charge LED, and a headphone / battery switch.
On the left ear, we will see the NFC logo, which tells us that the WR680 is easy, close to, paired with the music player. In addition, there is a 3.5mm mini-jack, three headset controls (pairing / playback control / answer / volume control) and status LED.
Technical Specifications The manufacturer’s specifications tell us that the WR680 uses 32-millimeter 32-ohm dynamic transducers. They also have a built-in A2DP, AVRCP, HSP, HFP compliant Bluetooth module that supports only basic SBC audio coding and provides a theoretical coverage of 10 meters in theory. The WR680 also features NFC communication to facilitate evaporation, a microphone, and a 3.5mm minijack jack for wired connection to the audio player.
The frequency range of the used transducers is from 20 to 20,000 Hz and the sensitivity of the headphones is estimated at very good 107 dB (measured at 1 kHz).
The built-in rechargeable battery should last for at least 8 hours of continuous operation – then we’ll see if that’s the case.
The convenience of carrying and carrying the WR680 is lightweight and comfortable even for people with a broad head. I would say that they are quite loose, but fortunately not enough to become unstable. However, when running or suddenly turning the head, they shuffle with the skin of the ear, which in the case of running can be a very unpleasant phenomenon.
The range of correct operation of the headphones proved to be slightly shorter than the one declared by the manufacturer – the WR680 stopped correctly playing the music at a distance of about 7 meters from the transmitter, and the tests show that they do not like any walls / obstacles limiting the signal transmission.
The full charge of the handset’s battery lasts about 3 hours (note – when charging, the headset must be set to ON), and the energy stored in it lasts for more than 10 hours of continuous listening (10 hours, 15 minutes). After this time, the device is still working for about an hour, but … in the headphones regularly, and in fact every moment there is an annoying, loud whistle that warns us about the low battery condition. For me, such an obtrusive way of communication is unacceptable and therefore I have not added the time with the pangs to the result of effective, wireless WR680 work.
Somewhat irritated me that after some time after listening (about 10 minutes), after turning off and on the headphones with the switch or after the wired connection, there is no easy wireless connection to the headset from the smartphone (also via NFC), despite the fact That the switch remains in the ON position. Requires longer (until the status LED lights up in blue). Hold down the play / pause button on the left hand side of the WR680 – nothing, but it can be bothersome.
The wired remote allows you to: control the volume (slider), play / pause (playback), jump to the next song (double-click) and activate voice search on your phone (long press of the button). During an incoming call using the remote control, we can answer / end (short press) or reject (long hold) conversation.
Playback audio quality The headset supports only the basic type of Bluetooth audio codec – SBC. Their music is quite coherent, unmistakable, legible and keeps good stereo. It is difficult to describe the music scene as wide by the WR680. Sounds are mainly located somewhere near us – in the area of ear pads and headband.
In the WR680’s wireless tone, I lacked both the very low notes and the highest notes. Their withdrawal is strongly noticeable. This only means that people who are more sensitive to sound quality will complain about having WR680 on their ears. The vast majority of mobile devotees, wireless listening to music should be, however, from the sound of TDK headphones satisfied. I recommend, however, a test listening before buying.
Wired connection improves the quality of the playback sound, which becomes fuller and presents better space, but … you do not buy a wireless headset for standard wired connection. To do this, you only need half the model cheaper.
In the test sample, the low level of the signal played back was accompanied by a steady, clear sound in the left ear (it disappeared within a few seconds of turning off playback). A little consolation, but it was the fact that this noise quickly overwhelmed the sounds of instruments present in typical music entertainment.
The quality of voice calls made using the WR680 is good. On our side, the quality of the wired connection is clearly better, because the voice of the caller on the wireless connection turns out to be more muffled. On the side of our interlocutor, the sound is slightly better when the headphones are in wireless mode.
Summary The TDK WR680 is a convenient, reasonably secure music player, and a low-noise Bluetooth headset that will also give you good quality voice calls.
Theoretically, it’s a very functional model – it has a good performance battery, supports NFC communication, supports an alternative wired connection to the player, and comes with a built-in simple remote control. In practice, there is a certain restriction of the convenience of the headset to operate a separate battery / power switch and a deep sleep mode (after 10 minutes) requiring us to frequently use the pairing button to reestablish the wireless connection of the headphones and the player.