U5ERWD1QD Headphone Volume Amplifiers - 4 Channels Multiple headphone outputs

Stereo input jack usb power supply Colour:Black Material:Metal Size:14.9x7.5x2.4cm Package Contents: 1 * mainframe 1 * power supply cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.