UKCHORD Chordette Toucan SLHeadphone amplifier with USB DAC.CHORDs original switching power supply is used in the machined aluminum housing. The digital circuit and analog circuit are driven independently.There are no scratches as it has been used very infrequently.Its compatible with MAC and produces great sound without the need for any software.The box, main unit, USB cable, power supply, and instructions (in English) are all included.specificationFrequency characteristics: 20Hz to 200kHzTHD+N: 0.06%Dynamic range: 112dBDigital input: USB (Btype USB2.0) 1 systemAnalog input: RCA (unbalanced) stereo 1 system, XLR (balanced) stereo 1 systemSupported sample rate: 44.1-48kHz (USB input)Output: 2 x 6.3mm standard stereo headphone jacksPower supply: 12VDC 0.6A (AC power adapter included)Size: W6.3 x H1.6 x D2.8in (excluding protrusions)Weight: 400gShipping from Japan with Tracking Number & Insurance. I promise fast shipping via FedEx or DHL as soon as possible!Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.