The US is the largest market for Ergorapido, since they were launched in 2004. No other country have more homes with Ergorapidos than the US. And it is appreciated by Good Houskeeping as you can see.
The model names are slightly different in US (and Canada), which can be slightly confusing, maybe. So I summarized it
Li – 35, 18 V Li-ion
EL2040A – Ergorapido Power Ion, Steel Blue <– Best
Previous Model – only sold at Walmart
EL1010A Ergorapido 10.8V Li-ion
Other Models can be found here.