1.COMPLIANCE WITH REGULATORY SPECIFICATIONS: This USB audio device is a class specification 1.0 item and also complies with USB class spec. 1.1. These standards compliance ensures that it meets industry-accepted levels of quality, operation, and . 2.PLUG AND PLAY FUNCTIONALITY: Equipped with Plug and Play hot-swap features, it is straightforward and user-friendly. Simply connect it to your device using its USB specification 2.0 full speed compliant character - there's no need for additional software or installations, making it highly convenient for users. 3.SUPPORT FOR MULTIPLE SAMPLING RATES: This device supports 48/44 KHz sampling rates for both playback and recording, catering to a wide range of different audio files. This variety a lot of flexibility in simultaneously recording and playing back audio at high quality. 4.ADVANCED DIGITAL PLAYBACK MODE: In digital playback mode, this device expertly receives an audio stream from your PC via its USB interface, transmitting the audio data according to the AESEBU, IEC60958, SPDIF csumer interface standards. This technical capacity allows for the high-fidelity of digital audio.