Brand Name: hilidac Built-in Battery: No Recommended Headphone Maximum Impedance: 251-300 Ohm Output Type: LINE OUT (AUDIO OUT) Origin: CN(Origin) Input Type: USB DSD (Direct Stream Digital): Yes Body Material: Metal Dimensions (WxHxD): 49*15*6.8mm Model Number: Hilidac Audirect Beam2 Signal To Noise Ratio: 118 PCM: Yes Bluetooth: No DAC Model: ESS9281C Pro