Features:● Multi-function: 2 in 1, can be used as USB DAC or headphone amplifier
● 24bit / 96KHz USB connection for highest quality sound
● Support RCA, BNC, USB, optical fiber interface, wide use range
● Support optical signal: 16bit - 24bit, 32KHz - 192KHz
● Full metal shell, nice touch feelings, cool decoration
● Free changer, 6.35mm audio port to 3.5mm audio port, available for both ports
● Metal RAC input / output interface, abrasion resistant
● Beautiful appearance, perfect gift

Specifications:
● Headphone amplifier:
Impedance: 16 - 600ohms
Output power voltage swing: 19.2V, can use 600ohms headphone
Frequency response: 4 - 32KHz
Digital noise floor: Less than 0.01mV
Signal to noise ratio: 110dB
● Decoder:
Sampling frequency: 96KHz
Digital noise floor: Less than 0.005mV
Signal to noise ratio: 114dB
Maximum USB sampling frequency: 96KHz
Maximum optical fiber sampling frequency: 192KHz Package weight: 0.945 kg
Product Size(L x W x H): 19.50 x 11.50 x 5.00 cm / 7.68 x 4.53 x 1.97 inches
Package Size(L x W x H): 28.00 x 20.00 x 8.00 cm / 11.02 x 7.87 x 3.15 inches Package Contents: 1 x Headphone Amplifier, 1 x Audio Adapter, 1 x USB Cable, 1 x Power Adapter, 1 x English User Manual