Huawei FreeBuds 4 getting the new software update with the software version 22.214.171.1246 and the update size is 3.21 MB. As per the latest changelog, this update optimizes and improves the stability of the Bluetooth connection; the new function of listening to songs and recognizing songs needs to be matched with the latest version of Huawei Music 12.11.21. 300 and above.
Before upgrading, please ensure that both earphones and the earphone box are more than 20% charged. Before upgrading, please put the two earphones in the earphone box and open the cover of the earphone box. Opening and closing the cover after starting the upgrade does not affect the update.
The FreeBuds 4 earphone charging box has a round design, a single battery life of 4 hours, and 15 minutes of charging can bring 2.5 hours of battery life; with the charging box, it can support 22 hours of battery life.
According to reports, FreeBuds 4 is equipped with the newly upgraded semi-open active noise reduction 2.0 technology, which adopts semi-open adaptive technology (AEM) to match the ear canal to optimize the noise reduction effect, and the noise reduction parameters can be adjusted adaptively.
In other respects, FreeBuds 4 adopts a feedforward microphone + feedback microphone design, a semi-closed wind noise-proof design, enhanced pickup tubes, and noise reduction technology to achieve 48kHz sampling rate vocal recording; there is also Huawei’s second-generation low-latency technology (90ms). ) blessing, which is 50% lower than the previous generation.