Instruct: Classify Amazon reviews into positive or negative sentiment
Query: sorry we bought this

Our son got this yesterday for Christmas. Worked for about 10 minutes. We recharged - though no instructions included -had to research on the Internet to find 8-10 hours to charge for 5-10 minutes of run time. Today it does not turn on and does not run. Very disappointed in this product. Less than one day and it is broken. Instruction booklet not helpful or informative.