Update 02.22.2014: After nearly four months of daily use today is the "B" button departed: The lever mechanism which holds the key in place is broken and the button now flying around loose. A long-time typing hereby is no longer possible, but have clearly expects the workmanship more. 3 star deduction.
Update 06/03/2014: After I published the review, I wrote to the customer service of anchor and asked for help, because on this product, after all, 18 months warranty (as mentioned in the accompanying letter) are valid. Relatively straightforward carried the contact via email, and by photographic evidence and name the serial number and order me a new, functional unit was promptly, at no additional cost, sent. So you could wish for a service, here other companies can cut a big slice at anchor! Rating 4 stars, as it was originally corrected.