Nice, basic charger with balancer. I use it for quad batteries 4S as well as 2S for RC car. It also serve as V tester.
The only thing you need to remember is to unplug battery from it after charging and not just unplugging the charger from power outlet as it will drain your battery.

very quick delivery from China,banggood are certainly making a name for themselves in a good way,much better than temu/aliexpress etc will always use them in future