Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointing

ordered the Kaito KA888 emergency radio for a present. It worked for exactly one day, then the AC adaptor died, making it impossible to use the radio on current or recharge it. Then the solar function stopped a few days later.I have been in contact with the company and am returning it for a replacement, as that first day was wonderful.I'll let you know if the replacement one works.very disappointing so far.