no manual or product information came with it-unsure of some ...
345825
no manual or product information came with it-unsure of some aspects;.
had to run it in another room for a week because of plastic smell! now it's finally gone!
otherwise runs well so far.
3174280
My biggest complaint so far is that this item arrived without a manual or any instructions. I hope I can get it to work.
3813470
The product comes with almost no documentation about how to use it. The only information available is in the product description on the Amazon web page and that is very sparse. There also doesn't appear to be any online documentation. At least I couldn't find any and I have relatively good search engine skills. Be prepared to do a lot of experimentation to determine how this works.

Update: Tried device on several computers and operating systems. Wasn't able to make it to respond at any baud rate. Without documentation, it's not clear if the device doesn't work or there is something special that needs to be done to initialize it. Because of that I'm lowering the rating to 1 star.
1151785
there is no instruction manual to set up. you have to figure out what to do and if you need additional equipment
870763
This might be a great product. But I'll never know, as I screwed up the installation because it came with no instructions.
1472857
The kit came w/out any instructions.  And the three point line is not obvious.  I was disappointed w/ the lack of info available both before and after purchase.
1640255
I have just had this charger for less than a week so I don't feel comfortable rating its performance. However, imagine my surprise when I received the charger and I opened the box and I realized that there was no documentation included... no instruction manual, no registration card, no warranty. Nada! Zip! Nothing! Granted, I don't believe you have to be a rocket scientist to use it, however for an electronic item whose price of $50 is at the upper end of comparable items you would think that some documentation would be included. If someone is reading this from the distributor or manufacturer, how I can I get copies of these items?

I will update this review after I had a chance to use the charger.
3706827
the product is useless, reason no information is provided about the product or HOW TO ASSEMBLE OR HOW TO USE THE PRODUCT
319911
I have been very happy with it, but would have been happier if it had come loaded with a useful owners manual.
3384439
not enough information came with the unit, I had to watch a video online to program it , it's all digital, very good machine , more info with it would of been appreciated
676075
No manual? For a product which is not terribly intuitive to set up or understand the function of the many LED's a manual or instruction sheet is a must. I could not find it through a Google search.
4569395
No directions came with it.  I have no idea how to use it!
4128461
Did not come with instructions. Other than that, once we figured it out it works great!
3400812
I'm not really sure if I like this or not, it did not come with instructions so I've been googling away.  I think it would have been more helpful  if it came with instructions.
1714850
There is NO documentation with this product.  Be prepared to buy a "how to" book, that or have a LOT of time on your hands trying to figure out what things this device can do... and how to make it do any of them.  If using this were more intuitive, I might feel better about this purchase.  That part is sorely lacking too, so oh well.  The grand kids say they love theirs...

Shame on you, Amazon.  I have always thought more of the Amazon organization than I do at the moment.
2214846
The page pointing to the documentation at [...].  So how do we get a user manual for this product???
4240334
no owner's manual to speak of  no illustrations for buttons on speaker  packaging was OK  unable to get speakers to work with my imac instructions for use were confusing