Question about Hannspree HT225HPB

Hello together Does this monitor also have an integrated battery, or does it only run with a power supply? I'm looking for something like the Asus Zenscreen (https://www.galaxus.ch/de/s1/product/asus-zenscreen-touch-mb16amt-1920-x-1080-pixels-16-monitor-11905118) but with 21 inches. Thanks for the help.