Volt as is one of the Indian manufacturing company and is taking lead in field of air conditioner. I am also the user of the same brand. As per the name window, the window ac needs proper ventilation and space for its arrangement which can’t be a big issue as we come to the look and its working. The estimated time of its compressor toh get started is 5 minutes and the cooling it give can only be expirienced, to there is a very minimal sound comes during operation. A sencor remote do comes along which help in the proper setting accordingly with temperature and fans arrangement. Totally cool cooling ac I would recommend all to get this product as services are too good.