DD Hifi TC44b portable usb-c dac / headphone amp with two balanced outputs: 2.5mm & 4.4mm. Outputs are only compatible with these new earphone & headphone cables with balanced design (they have a separate ground for the left & right side, so you get a separate amp for each side and a more spacious soundstage).
Usb-c cable comes out of the rear, ready for everything other than iphones. The dac actually has 2 dac chips, 1 per side, for better specs and power. Housing is all metal, compact and durable.