Focus on the audio performance and give you and your family a higher quality of life. Features: USB-tier manufacturers with a stable performance VIA VT1630. High resolution, under a wide range of frequency support 24BIT 44.1K-96k. Android 4.2.2 system can support OTG mode (need native system). Support for Apple phone, tablet OTG mode, etc. DAC part is fine CS8416 + CS4398 LPF output using OPA. Note: The volume adjustment knob does not function on the RCA interface, RCA interface is the red, white output interface. Specifications: Brand: FX-AUDIO Model: DAC-X6 Material: ABS Standard Input Interface: PC USB / coaxial, fiber optical Standard Output Interface: 6.35mm headphone output base line standard RCA connectors Output power: 90mw / 600Ω, 180mw / 300Ω, 450mw / 100Ω, 610mw / 62Ω, 910mw / 32Ω, 1000mw / 16Ω SNR: ≥105dB Distortion: ≤0.001% Frequency Response: 20hz-20khz Adapter Voltage: 100-240ACV Machine Power / Adapter output voltage: Dc12V 1A above Color: Black Line level output: RMS 2V Item Size: Approx. 14.7cm * 9.3cm * 3cm / 5.79in * 3.66in * 1.18in Item Weight: Approx. 351g / 12.38oz Package Size: Approx. 22.5cm * 21cm * 6.4cm / 8.86in * 8.27in * 2.52in Package Weight: Approx. 645.2g / 22.74oz Packing List: 1 * Decoder 1 * Adapter 1 * USB Cable 1 * User Manual