I opened the package very carefully so I could return them in case they sounded, well, like little tiny speakers, I was impressed with how good they sound. They beat having to lug a radio into the job site along with all my tools. I plug my Nano into them and they go all day long. Only take about 90 mins to recharge on the laptop but I'm going to get a 12v power point/USB charger thingamajig for the van so I don't have to worry about forgetting to bring them in to charge.