It looks kinda like this but with a curvier handle:
https://www.amazon.com/Handheld-Toilet-Adjustable-Pressure-F...
You don't need a fancy motorized electric thing (I don't trust cleaning all those little nozzles and angles). I started using this after I stayed with a Muslim friend in Morocco years ago. I had no choice but learn, and now I'm hooked. My partner thinks it is gross, tho. /shrugs/