Speakers travel with me to various events. Very pleased with their portability. Unfortunately, they do not give out the declared 1000 watts - they will give out a maximum of 500 watts. At the event, they gave out 450, but already with a wheeze. I was pleased that the column is quite compact and a couple fit into the trunk quietly. The USB port helped out a lot of times, but as burnt flash drives showed, I do not recommend leaving the flash drive for more than 50 minutes. The flash drive heats up and then you can immediately throw it away (I inserted 4 flash drives of 512 MB each, new ones)