“Works straight out of the box.
Minor negative is that the touchpad is a bit fiddly to touch. It took a bit of practice to get the touch response to match my finger movements.”
“Small enough to work in my Peli case Pi laptop. Battery capacity ok. Size of keys adequate and better than those teeny tiny keyboards. On the downside mine is a little bowed, would be better if the chassis was metal. Cheap and cheerful though.”
“Worked perfectly first time with the Raspberry Pi 4. After charging it up, simply connected it from the desktop Bluetooth icon and then could unplug the wired keyboard and mouse.”