Tianlong AH-NCW500 noise reduction wireless headset evaluation

Tianlong AH-NCW500 is a Bluetooth wireless headset with integrated active noise reduction function and support for wired connection. Thank you for providing test prototype. This headset can be used for packaging, appearance and product features and even details of accessories. It can be seen that its positioning is business application. Its licensed price is as high as 2,998 yuan, and the online shopping price is about 1,000 yuan. It is not difficult to see that this is a very beautiful earphone. How is it performing?

The appearance of NCW500 is tough. Although most of the outer casing is not made of metal, the metal plating process on the plastic surface is superb. The top of the headphone and the ear pad are covered with soft leather material. The size of the earphone is not small, but some accidents. The ear pad of the earphone adopts the ear-type wearing method. The active noise-reducing earphone adopts a similar structure and seems to have not seen it. Generally, the active noise-reducing headphone uses a larger inner ear structure. It is said that this is related to the active noise reduction process [not completely determined].

The back of the NCW500 unit uses two metal-knife-shaped knobs with a strong metal texture. The knob on the right channel can adjust the volume of the headphones [internal power amplifier adjustment, not synchronized with the phone software]. The middle button can Pause the music and answer the call. The left part of this part is symmetrical with the right side, but there is no actual function. Although the surface treatment process is exquisite, the knob is loose, and the middle button is unimaginable. After you personally operate, you may lose most of your interest in this headset.

Below the left side of the headset is a 2.5mm stereo interface. When connected, the headset can work in wired mode. When connected, the Bluetooth will automatically turn off. The switch next to it is used to turn on the active noise reduction function, and most active noise reduction. The function is the same. After turning on, the internal DSP and amplifier will compensate the sound. There is a similar effect of "built-in amp". This effect can be turned on regardless of wired or Bluetooth connection, and active noise reduction can be effective.

Below the right side of the headset is a standard Micro USB port for charging. The small button next to it is the Bluetooth switch of the headset, and the button that needs to be long pressed when pairing is used for the first time. You can press it off when not in use. There is a button on both sides of the headset. A soft-light LED that flashes blue before Bluetooth pairing. It is indicated in red when charging.

The overall wearing comfort of the earphones is better, but the looseness of the decorative part is the same on the head frame. Wearing a slight movement on the head will make a squeaky sound, which is very annoying. There are many similar problems with the headphones. However, this problem has been extremely rare in new products in recent years.

The official NCW-500 supports CSR's APT-X and CVC technologies. APT-X is an audio coding standard superior to traditional Bluetooth SBC encoding. It requires decoding and playback [such as headphone speakers] and coded transmitters [such as mobile phones]. Supporting the cooperation, high-quality reproduction can be achieved. The theoretical specifications of APT-X technology are very high, especially under the latest specifications after 2009, support 24bit HD, support lossless coding, etc., the official also said that the lossless algorithm is better than FLAC. But the actual use is not so good. However, the sound performance of APT-X is definitely better than the traditional SBC code. We have already experienced it on Sony, innovation and other speaker devices. CVC voice Call technology, no research and evaluation here.

Netizens sent a test to specifically talk about whether APT-X and vivo mobile phone can bring better sound quality, but I don't know why. NCW-500 and vivo all mobile phones can't connect with Bluetooth, we tried Nexus4, ZTE Z7 mini I can't connect to the NCW-500, only iOS devices are available.

The NCW-500 headset experience is not good, except for Bluetooth and Android devices, which have been tossed for a long time. In terms of wireless and wired switching, the system seems to have defects. In many years ago, Bluetooth speakers have long been able to achieve wireless and wired. Seamless switching. That is, you are using Bluetooth to play, plug in the cable, and immediately enter the cable playback state. However, the NCW-500 can not only do it, but it may cause the machine to lock up after switching, or there is no sound in one channel. Need to re-plug A 2.5mm interface can be restored. Perhaps we won the prize, and encountered this rare and incomprehensible problem in just a few hours of use.

Subjective hearing: When the NCW-500 does not turn on the active noise reduction switch in wired mode, there is no compensation for the built-in amplifier circuit. The medium frequency and high frequency dynamics of the earphone are very poor, at least the connection to the mobile phone feels like it can not be pushed at all. Low frequency The sound is obviously in a relatively fuzzy state. In recent years, the low frequency of the earphones has been so poor. After the active noise reduction switch is turned on, the dynamics of the intermediate frequency and the high frequency are obviously improved, the sound is basically in a normal state, but the whole sound is still More vague, the middle and high frequency part is also difficult to reach the level of an entry-level headset. In Bluetooth mode, the sound is more transparent, it should be compensated for the Bluetooth part, the result of the built-in amplifier circuit has been working? But the overall sound There is still not much to mention. The active noise reduction effect is also very general. It should not be as good as the Sony Walkman and Xperia phones with in-ear earphones.

to sum up

The performance of the Tianlong NCW-500 is extremely disappointing. This is a product that has done very badly in all aspects. The exquisite appearance process is broken in the hands of the terrible assembly process, the buzz of the head frame, loose and sturdy. Knobs make users worry about it; Bluetooth has compatibility problems with Android phones; active noise reduction, the effect is not good; sound quality performance can also be ranked in the countdown of similar headphones, not to mention thousands of dollars price.