Knowledge Zenith Z3

Stylish vacuum TWS headphones with touch control from the sensational Chinese company Knowledge Zenith (or simply KZ), which entered the portable audio market at the end of the last 10 years and in the shortest possible time achieved the love and recognition of the public. The Z3 is part of the KZ 2022 product line, belongs to the mid-range price segment and is designed for the category of users who are looking for fully wireless headphones with an emphasis on sound quality, not auxiliary functions.

In particular, they do not have an advanced ANS system, sensors that monitor the rotation of the head, auto-pause functions and Multipoint support. But there are hybrid armature drivers with multiple dynamic drivers that provide a tight, powerful and rich sound with clearly defined dynamics and a wide soundstage. They have a sensitivity of 101 dB and are able to reproduce the frequency spectrum in the range from 20 Hz to 40 kHz, which exceeds the technical capabilities of most mid-range TWS headphones.

Thanks to the high-end Bluetooth chip Qualcomm QCC3040, the headphones have been able to realize a game mode with a delay in audio transmission of only 40ms. In fact, this is 3 times less than the delay in a conventional Bluetooth 5.2 receiver. In addition, it affects the range and quality of the wireless connection. In particular, the manufacturer promises a stable signal at a distance of 15 meters from the signal source, although this figure is limited to 10 meters for most competitors. On top of that, the Knowledge Zenith Z3 supports aptX audio codecs and is Hi-Res Audio certified. Claimed battery life for the Z3 is 3.5 hours. With the help of the charging case, the total operating time of the headphones can be extended up to 18 hours.