Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Piece of Junk...DO NOT BUY!!

The biggest problem with this machine is that there is no keyboard and the touch screen absolutely does not work. Searching for a word using the touch screen was absolutely impossible and sometimes would take up to five minutes to find a word. It Proved to be so bad that it was utterly useless in Egypt and I had to buy a paper dictionary while there.Another problem was that the display contrast was really light even at the highest settings was hard to see, so when i couldn't pronounce a word, the show and point method proved difficult. In addition the dictionary does not give you an English pronunciation and was utterly useless for someone who has a hard time reading arabic.- Not to mention that many translations did not include vowels.The speaker was practically useless as well considering only about half of the words had the ability to be amplified.This dictionary is a worthless piece of junk, and ridiculously expensive.You are better off with a paper dictionary.