Knowledge Zenith S1

Stylish vacuum TWS headphones with hybrid drivers, extended frequency spectrum and a minimum of additional features. Responsible for production is the young and daring brand Knowledge Zenith (or simply KZ), which in just a couple of years turned the portable audio market upside down with a meticulous approach to the production of compact multi-layer speakers. In the range of the brand, the S1 model occupies an average position, belongs to the upper limit of the lower price segment and is designed for users who prioritize the sound of headphones over additional functions.

Their main feature is hybrid speakers, in which the woofer is responsible for the bass and the middle part of the spectrum, and the tweeter, respectively, sounds the upper frequencies. The speaker has a total sensitivity of 113 dB and is able to reproduce the frequency spectrum from ultra-low 20 Hz to frequencies almost inaudible to the human ear in the region of 40 kHz. Despite the budgetary status, the headphones sound booming and tight bass with a well-detailed and detailed top.

The harmonic distortion factor does not exceed 4%, which is an excellent result for wireless headphones. Some additional functions are not provided in this model: there is a basic microphone noise reduction, and they saved money on a full-fledged ANS, since the vacuum design has sufficient passive isolation. To connect to a smartphone or other signal source, a Bluetooth 5.0 chip with a 10-meter range is used. Built-in batteries hold a charge for 3 hours, then they can be recharged in a charging case, which has a massive 300 mAh battery. Fashionistas should be attracted by the fact that the headphones are available in 4 different colors.