Hello friends last few month I am using this speakers and its sound quality is much bette but not the best but good product in your budget, the Bluetooth facility - you can paly music from your mobile without any ware. and there is a remote by using this remote you can control your volume and modes from any where in the room and its user friendly too. in 3500 budget it is a good product you can paly music via any usb device like pendrive and card reader direct memory card support