Every year many people opressed with summer with hot season, many more to have to different cooling devices in others brands to using in summer.Some brands not committement as declared in specification on products, totally confusion has been created.Best brands always used test & trial method then reveals their object and specification on the product.i purchased another brands cooling set last five year ago as best I choosed that time but that devices did not performed well as I expected, but I had already paid amount to seller and could not done again.In the last summer season I introduces with symphony cooling device, so I resolved that first I checked performance of device the and taken list from seller who sold others, no qurey, no problem I observed, i also observed specification of devices and found correct, then I purchased, nice feed back I got.My suggesstion is for viewver is that without checked performace of any device do not purchase.Symphony is the best brand in the market which provides good quality and services.