Product Description This is an offering of the main unit only. No box or accessories are included. Charging is possible via Micro USB. Operation has been confirmed with both iPhone and PC. I haven't used it much because I bought a different product right away. Although it's a portable device, it was used indoors. There are some minor scratches, but they are not noticeable, and I think it's in good condition. Pure headphone listening even at high volumes. A DAC-equipped portable headphone amplifier that supports high-resolution audio playback from iPhones. With DAC Supports high-resolution audio Supported impedance: 8Ω～600Ω Weight: Under 1kg HA-P50 DAC