Vilros 2.5A Micro USB Power Supply with On/Off Switch for Raspberry Pi (NOT compatible With Pi 4) gaming This is the Vilros MAX

This is the Vilros MAX accessory bundle for the Pi 400

Dual Corded DC & USB-C Power supply powers the screen and Raspberry Pi Board

but it's also significantly smaller at 65mm x 56mm if you don't include an overhang from the connectors

525mAh LiPo battery (should be good for at least 6 hours of on-time)

Open a terminal and type the following:

Vilros 2.5A Micro USB Power Supply with On/Off Switch for Raspberry Pi (NOT compatible With Pi 4) gaming This is the Vilros MAX2. 5A Raspberry Pi Micro USB Power Supply with Switch US Plug Micro USB 5 Ft Cable Ferrite Bead Noise Filter On Off Switch UL Listed Compatible with Rasperry Pi Boards With A Micro USB Port only. NOT compatible With The Raspberry Pi 4