Instruct: Classify a review as either positive or negative.
Query: IMPORTANT REVIEW - SAVE YOUR MONEY

I BOUGHT THIS PRODUCT TO SAVE MONEY ON BATTERIES. HOWEVER THE AC ADAPTER AND THE CAR POWER ADAPTER DID NOT WORK. BOUGHT FOR MY SON'S BIRTHDAY. VERY UNHAPPY CHILD, VERY UNHAPPY PARENT. READ BEFORE YOU LEAP. THANK YOU FOR READING THIS REVIEW.