I. Nank Nanka1Noise-reducing Headphones
Nank Nanka A 1 Noise-reducing headphones are called "the king of active noise reduction machines" for their remarkable noise reduction function. In addition to the significant active noise reduction capability, the configuration is also relatively powerful, which is only 6-8mm compared with the speakers of ordinary wireless Bluetooth headsets. The unique structure of Nanka A 1, combined with 13mm super speaker, can bring more impact sound quality performance.
South Carolina A 1 Wireless Noise Reduction Bluetooth Headset adopts ANC active noise reduction technology, and collects the noise outside the headset through FF feedforward noise reduction for noise reduction, which captures the noise more comprehensively and greatly improves the active noise reduction effect. In addition, Nank Nanka A 1 Wireless Noise Reduction Bluetooth Headset has been deeply optimized for low-frequency noise reduction in airplanes, subways, buses and other environments, especially for low-frequency noise within 400Hz.
In theory, ANC loop is a simple inverting circuit, but it is not. Because different components of the earphone will affect the frequency response and phase response, simple inversion can not make ANC meet the performance requirements. In order to ensure the quality of headset noise reduction, Bernanke Bluetooth headset has set up a high-standard acoustic laboratory. After more than 10000 times of passive attenuation, frequency response and repeated modification of filter architecture, a noise reduction strategy that can be automatically adjusted according to environmental changes is designed, which can selectively deal with noise in specific frequency bands, basically covering 90% of ANC acoustic noise reduction requirements and achieving ideal noise reduction effect.
Second, hivi AW-76 bluetooth headset
Hivi TWS headphones are designed in-ear and worn very tightly. Hivi AW-76 supports Bluetooth 5.0, and the earphone compartment is equipped with a type-c charging interface, which improves the versatility of the device. The 700 mAh battery can last for 25 hours, and the earphone can be used for 5 hours on a single charge. To tell you the truth, I really haven't tested this myself. I listened to 1 hour music for the longest time. But I use it every day. It's been a week now, and the earphone compartment doesn't need to be recharged.
Third, Samsung Galaxy Buds Bluetooth Headphones
Samsung Galaxy Buds, a Bluetooth headset, is suitable in size, round in shape, light in weight, reasonable in center of gravity, not easy to loosen and comfortable to wear. In terms of sound quality, Samsung Galaxy Buds has AKG for sound quality adjustment, and the actual experience is really a bit of AKG charm. The overall taste is mild and steady, soft but not weak, which is really good.
Fourth, Airpods2 generation Bluetooth headset
As the pioneer of Bluetooth headset, Apple has certain advantages in appearance, and many headset brands are imitating it. The one evaluated today has done a good job in Bluetooth stability and low latency. Apple Bluetooth headset has a long battery life, supports wireless charging, and has no anxiety when going out. Very suitable for people who need to travel, small and convenient to carry around. The biggest advantage of the ear-mounted Bluetooth headset is that it is comfortable to wear. Known as the originator of the wearing experience, it is often forgotten in the ear. However, due to its lack of sealing, the sound is relatively flat as water. Fortunately, its stability and low game delay are not bad, as well as pop-up animation. Generally speaking, it is good.