Friends who often take public transportation or long-distance travel by plane or train, have anti-noise headphones that can reduce the rumble of the engine and the noise of other people's chats, in order to fully rest and enjoy their favorite music. The Korean headset brand Phiaton has a high-end headset PS 300 NC with anti-noise function.
The PS 300 NC is covered with artificial leather on the outside of the earmuffs, and a champagne gold case next to it adds visual sensibility. There is a Bass +/- adjustment lever on the bottom of the right ear cup.
Phiaton PS 300NC Headphones
Easy to carry and comfortable to wear
From the appearance, PS 300 NS and Bose QC3 are quite similar, such as battery installation, ear pads and heading materials, but you will see that there are many different places in the two: PS 300 NC Artificial leather is placed on the outside of the earmuffs, and a circle of champagne gold is placed next to it to increase the visual quality. The other part is made of black materials and takes a mature route.
Phiaton PS 300NC Headphones
PS 300 NC is a closed earmuff design, it has a good sound insulation effect, in order to facilitate travel out, earmuffs are designed to be smaller, can be classified as headphones, that is, the earmuffs are pressed against the ears On the top, the ear pad material is very soft and does not have much pressure. In terms of volume, the PS 300 NS is smaller than its own high-order earmuffs MS 400. If you bend the earmuffs inward, you can reduce the volume. The included hard-shell storage box provides good protection. The size is about the size of a palm, so it is convenient for the user to carry with him.
Active noise immunity
The PS 300 NC has an active anti-noise function. It uses the built-in microphone to collect ambient noise. After analysis, it sends reverse sound waves to cancel the external noise. The original factory comes with two dedicated lithium polymer batteries (capacity 190mAh) as the power source. The battery provides 18 hours of endurance. In addition, the original factory added the patented VHST (Valves of the Heart Sound Technology) airflow control technology, what is VHST? The original factory made an analogy, just as the heart controls blood flow, and it does not flow back and forth in a single direction, using a one-way valve to control the direction of the airflow. Users of closed-type headphones may notice that when the headphones are put on, the ears and the ear pads are closely attached together, which will make the earmuffs form a closed space. At this time, the air pressure cannot be quickly vented, and it will be squeezed. The diaphragm of the earphone unit makes the diaphragm deform and emit strange noise. With VHST, the air can be quickly vented from the one-way valve, reducing the influence on the unit, and at the same time blocking the inflow of external air and increasing the sound insulation effect.
Note that there is a small circle above it, which should be the original VHST (Valves of the Heart Sound Technology) airflow control technology. 
The battery is disposed from above the right ear cup.
Strong warm voice
In the sound part, PS 300 NC is biased to medium and high frequency, has a strong warm mid-range line, high-frequency thickness is also good, no squeaky and scratching feeling, low-frequency performance is not eye-catching, which means that low frequency is not good? No, if you want more low frequency, just turn on the anti-noise function of PS 300 NC, the low frequency is like adding Turbo, the volume and sinking degree are increased, although it is not enough to explode, but this Small earmuffs and headphones are already quite worth seeing! Not only that, but the entire sound field has become more relaxed, and it is easy to drive with the source.
In the state where the anti-noise function is turned on, first listen to "Tiefufu Fever Discs Fifth Edition", the first track "Fanfare for the Common Man" ("The Ordinary Horn"), the low frequency of the opening timpani slamming The weight, along with the hum of the timpani drum, naturally extends, and the squeaking sound is thick and steady. The sound of the sound is clear and clear, the energy of the whole song is very strong, but it sounds relaxed on the PS 300 NC. There is no pressure. Change to the third track, Gurd's piano performance "Melodie d'Orfee Rameau-Godowsky: Trois Pieces I. Rigaudon", the piano sound is warm and rich, grainy and thick, the treble is stretched out, a little heard The noise at the recording site was so good that only a few coughs were noticeable.
Then I switched to the sixth track and listened to He Yuni singing "Thousands of Words". The plucked strings of the accompaniment guitar were delicate and thick. He Yanni’s singing voice also had a strong style. The details of the singing performance were moderate, and the faint lip sounds were heard. Ventilation, but not over-emphasis, quite resistant.
In another J Rabbit's "Looking Around" album, the second track "Looking Around" with the same name, HaeSun's voice sounds very direct and clean on the PS 300 NC, and the fresh song is a bit warmer. The lines, the overall details performed well, and listened to three songs in one breath. Although I couldn't understand the meaning of Korean lyrics, the relaxed and pleasant music style of J Rabbit was quite infectious.
Phiaton is a very young brand in the local earphone market, but his parent company Cresyn was founded in 1959 as the “old riverâ€, the first anti-noise headset PS 300 NC developed in combination with its own headset manufacturing capabilities. Has a very good active anti-noise effect, especially for the low frequency noise in the environment. The rich and gentle sound features are quite suitable for listening to vocals, and the small classical music is also very good. The low frequency also has a good level, especially in the state where the anti-noise function is turned on, the low-frequency sense is obviously enhanced a lot, but after all, it is a small earmuff earphone, and the low-frequency force and energy sense are still limited. The advantage is that this anti-noise function is like a built-in amp, which is easy to drive with a normal portable source.
Full of accompanying accessories, convenient for users who travel frequently abroad.
Equipment specifications
Type: Dynamic closed headphones
Monomer: 40mm moving coil unit
Impedance: 32 ohms
Frequency response: 15Hz~22kHz
Sensitivity: 98dB
Maximum input power: 1000mW
Line length: 1.6 meters
Weight: 140g (without line)
Reference price: 12,560 yuan
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