Only a balanced OUT

"The new TA-ZH1ES Headphone Amp and DAC supports both unbalanced and balanced inputs (the balanced inputs use a Sony balanced design). It offers upsampling to DSD 256 (11.2MHz) and playback of DSD 512 music (22.4MHz) with the DAC's USB port."

It is completely NOT

Check again and look again
Behind the amp where you see BAL inputs
XLR ????
Or 4.4

It is possible that only in the transition between Sony's Walkman NW-WM1Z Walkman - perhaps there but
It does not allow you to enter a real balanced.

And I did not read anywhere in Sony that there was a balanced entrance and I did not see either

Could you explain to me?

THANK YOU
LEV