Brand Name: JIE CHUANG Built-in Battery: No Recommended Headphone Maximum Impedance: <32 Ohm Output Type: LINE OUT (AUDIO OUT) Input Type: Bluetooth DSD (Direct Stream Digital): No Body Material: Metal Package: YES Channels: 2 (2.0) Output Power: 280mw Dimensions (WxHxD): 138*70*25MM Model Number: JC-T1 PCM: No Bluetooth: Yes DAC Model: PCM5102A Type: Mini Amplifier WIFI: No