Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fun with lots of batteries

I purchased this for my one year old son and was very impressed with the rich sound from the small speakers. The various colored blocks and shapes produces different pieces of the music cartridge (Mozart). After a year and a half it is still popular with my son.Two pieces of advice: I'd recommend it for 2 years and up (we didn't look at the manufacturer's recommendation). He enjoyed it, but was easily frustrated when blocks didn't go where he wanted. Also, I'd recommend rechargable batteries. If you leave the cartridge plugged in, it will drain the batteries in a day (we learned after many, many batteries). With that you'll have years of fun!