1.USB powered, analog output directly plugged into the computer’s USB port, eliminating the need for connection

2.Main chip PCM2704 USB decoder chip HIFI level, the most commonly used chip CM102S series, the output can be directly connected to the headset, but also do pre-digital outputs can be the DAC more advanced decoder provides SPDIF digital signals to obtain better sound quality due to the external sound card, within the enclosure to avoid serious electromagnetic interference, SNR and sound quality can be improved

3.PCM2704 is a monolithic digital-analog converter chip. It has two output channels and digital-analog converter with an integrated USB interface controller. Interface complies with USB1.1 standard.

4.PCM2704 can receive 48KHz, 44KHz and 32KHz sampling rate, 16-bit stereo or mono audio data integration software chip volume and mute functions, can be synchronized adjust the volume and mute the computer