Chips: PCM2706+CS4344+ Dual TDA1308

Power supply Voltage: 5V ( USB powered)

Distortion degree:THD+N: <0.008% (RL = 55 ohm)

SNR:>90 dB

Output power: 300 W ((RL = 55 ohm)

Available for headphone impedance: 16-120 ohm

USB sampling rate:16BIT/32-48KHZ

USB support system: WINXP/WIN7/WIN8, Apple MAC OS 9/OS X, Android 4.1 above system (need support OTG)

Product Dimension:74 mm *70 mm *29 mm

Package Contents 

1PC MINI PCM2706+CS4344+TDA1308 5V Parallel Output Headphone Amplifier