1.Advanced Hardware Delivers Unparalleled Sound: The KZ XTRA true wireless headphones is equipped with the latest Qualcomm 3091 chip, which is an efficient audio processing chip with excellent digital signal processing (DSP) capabilities. It supports a variety of audio encoding formats, such as aptX Adaptive, aptX HD, SBC, DAC and AAC, enabling high-quality wireless audio transmission. 2.PCBA Design and Layout: Due to the high integration of the Qualcomm 3091 chip, the PCBA design can be very compact, using an 8-layer PCB design, which is especially important for small devices such as true wireless headphones. The compact layout not only saves space, but also reduces the delay of signal transmission. 3.Hybrid Noise Cancellation: The KZ XTRA uses advanced active noise cancellation (ANC) and CVC call noise cancellation technology. ANC, through its powerful DSP, can process and eliminate ambient noise in time, providing users with a quieter listening environment. Built-in CVC noise cancellation technology can effectively reduce environmental noise, especially during calls, to provide clearer sound transmission, improve the call clarity. 4.Latest Bluetooth 5.4 Version: The KZ XTRA bluetooth earbuds support for the Bluetooth 5.4 version enables the QCC 3091 chip to improve the performance of this wireless headsets in several ways, resulting in more stable wireless connections and lower audio frequency latency. The reduced power consumption can significantly extend the battery life of KZ XTRA TWS earbuds, which can reduce the times for charging.