FiiO FW3 True Wireless Earbud, Bluetooth 5.2 LDAC/aptX Adaptive, 10mm Drivers with Big Bass, App for Custom EQ, 21H Playtime (Grey)

[Proficient AK4332 DAC] The left and right channels are each equipped with an AK4332, achieving proficient audio decoding, just as if you were listening to a live performance.
[10mm carbon-based dynamic driver] The high-end 10mm carbon-based dynamic driver leads to quick transient response as well as the highest resolution rarely seen in the same class of products.
[Supports LHDC/aptX Adaptive Hi-Res Bluetooth] LHDC and aptX Adaptive are a considerable upgrade in sound quality over earlier Bluetooth sound formats fully allowing the FW3 to reproduce music in all of their glorious detail.
[Qualcomm Bluetooth QCC5141] The high-end dual-DSP and dual-core CPU, QCC5141 Bluetooth chip allows the FW3 to feature exceptionally stable Bluetooth audio and general operation.
[Frequency response meticulously tuned by acoustic experts] The fully integrated TWS FW3 proves that one can create a true wireless pair of earbuds with audiophile-level sound quality. The development team painstakingly tuned both the digital and analog components to allow the FW3 to truly faithfully reproduce your music.