They have had come up with instructions and components that I believe they have made the effort of providing a product- -to eliminate a lot of problems cause by consumers either using the wrong accessories, or not being able to understand Chinese English. Perhaps they have been listening to some of the Amazon reviews.. They provide a memory chip to make sure the consumer doesn't mess up by buying the wrong chip- and blaming the product- and enough batteries to make it operable and to also make sure the consumer know the right type )The instuctions for operation are silk screens in the inside of the unit- incase you lose a paper copy.This is a step above some of the usual precast that are foisted on us. They seem to want to support the product with tech support and warranty- - I have not tried this aspect.My only criticism, is that like a lot of product- they have some controls- (0n off test)- embossed in the black plastic- making it difficult to see what the positions are. Partiilary for those with not so great eyesight. I might add tiny writing with light gray and white on Pale product manuals, is an irk of mine.