Built-in with digital audio converter (DAC) high-resolution chipset, it offers a sampling rate of up to 384KHz/32bit and DSD128 to enhance the original sound quality of your mobile phone where it gives HiFi grade 115db SNR. Hi-Res Design: High fidelity design ensures stable audio signal and no loss transmission. The DAC chip and PCM/DSD decoding technology will provide clear high, soft intermediate, and pure low frequency for you to enjoy music. OS SUPPORTED: All Windows and Mac OS