There is a clone version of the Mi4 around at the moment very cheap on Ebay and some Hong Kong shops, even using the genuine Schumacher sales pitch word for word etc etc
Be aware if buying one of these you are not buying a Schumacher you are buying a very cheap copy. The 2 people I know who have bought them have been very unhappy with the quality and the after sales service, spares back up etc and in one case consigned it to the bin and the other has all but given up on it after just a few weeks.
For the same dollars a good second hand genuine Schumacher would be far better value .
For those of you who havn’t seen the light yet – also beware the clones of the Tamiya 416 and the Xray they are of a similar quality