Bluetooth 5.0 (QCC3008 chip) supports APT-X, APTX-LL, adding classic TDA1543 chip for decoding and external high-gain detachable antenna, makes its sound transmission low-delay and lossless.
USB sound card part uses CM6642 chip, supports 24bit 192KHz transmission, compatible with Windows / Mac / Linux system and Android mobile phone with OTG function, no need for driver, plug and play.
Headphone amp uses classic MAX9722 decoding chip, 300mW output power can drive most 16-600 ohm headphones.