Click K5 active noise reduction Bluetooth headset.
K5 percussion is particularly comfortable to wear. The ear bag is made of protein sound-proof ear bag, which is soft, breathable and elastic. Much more comfortable than "artificial leather cotton", the blank area in the middle of the ear pocket is enough to accommodate your ears.
K5 has a built-in 360mA battery, and its battery life is nearly 1 1 hour. The battery life is much longer than you think, and it only takes about 2 hours to charge. Personally, I think this battery life is quite satisfactory. Even if there is no power supply, it will become a wired earphone, which is convenient and comfortable and has strong performance.
In terms of sound quality, it is clear and fidelity, thanks to its NdFeB 40mm unit driven by Magnetron and even imported chips, the noise reduction performance is improved by 30% in an all-round way, and both wired and wireless can be turned on. When you turn on the ANC noise reduction switch, the expressive force of sound quality obviously evolves gradually, and the surrounding sound is also weakened a lot.
Headphones use AEC to actively reduce noise, and audio sockets and audio cables are also standard, which meets the embarrassing scenes when some users play games or have insufficient power. Active noise reduction is the outstanding selling point of K5. The official data is tested according to the American standard ANSI S3. 19- 1974, which can effectively control the noise exposure value within 8 1 dB (personally, this value you gave me is the sensitivity). When Boeing 727 took off, the cabin noise was 80 decibels, and the part near the engine was about 85 decibels. According to the noise reduction level, the noise level of percussion can be calculated as level 5. Friends who like quiet, highly recommended!
BOSE QC35
The overall appearance design of the BOSE QC35 wireless noise-reducing earphone is not a popular young personality line, but a return to retro, a retro route, a simple retro appearance, or a solid color design. There is no strong sense of visual conflict, which gives people a feeling like a cup of mellow ancient tea. The better it tastes, the longer it lasts.
Bose can achieve good noise reduction effect, mainly due to acoustic noise reduction technology, which can monitor and identify noise, send out correction signals, and offset the impact, thus diluting background noise interference and creating a quiet atmosphere.
BOSE QC35 Headset Wireless Noise Reduction Headset adopts high-performance lithium battery, which only takes 2 hours to fully charge at a time and can last for 20 hours. Don't worry even if there is no electricity. Just like K5, you can continue to use headphones with headphone cable.
Aofei EH3 numerical control
Aofei EH3 NC supports the mainstream SBC/AAC/APTX/APXLL/APXHD/LDAC/HWA high-definition lossless Bluetooth HiFi format; Adopt ADI professional noise reduction chip, bidirectional four-microphone array digital noise reduction technology, and mix front and back feedback to actively reduce noise. It can effectively isolate aircraft/vehicle noise and provide you with excellent noise reduction effect anytime and anywhere.
Different from the 40mm caliber unit commonly used in headphones of the same level, EH3 NC adopts a 45mm large-caliber strong magnetic double-sided titanium-plated diaphragm, which presents a more shocking low frequency under the new generation acoustic tuning technology of Orpheus. Earmuffs are designed with detachable earmuffs, and high-quality protein leather earmuffs are standard, which are soft and skin-friendly.