Topping DX9 DAC + Balanced Headphone Amplifier, high-quality workmanship. The Topping DX9 contains the AKM4499EX DAC chip as well as Bluetooth 5.1 with LADAC, which is a must if you love HiFi. In addition to USB and Bluetooth inputs, it also has optical IIS, COAX, TOSLINK and AES inputs. The Topping DX9 contains 3 different headphone outputs: a standard 6.35 mm single output, a balanced XLR output and a balanced 4.4 mm output. There are also separate balanced and unbalanced - fixed and variable LINE outputs. The DX9 volume control is hybrid, which means it uses analog and digital elements for volume control.
What comes in the box:
USB cable
Bluetooth antenna
AC cable
Remote control
6.35 to 3.5 headphone adapter
You can find other information at this link.