The kanto yu4 powered bookshelf speakers are a solid choice for home listeners vinyl collectors and anyone looking to improve their tv desktop or streaming setup. Designed with 4 inch kevlar drivers and 1 inch silk dome tweeters they offer accurate sound with plenty of detail and presence. This bundle also includes a pair of titled desktop stands which optimise the acoustic performance of your speakers. With a built in phono preamp you can connect your turntable directly and bluetooth 4.0 with aptx allows for high quality streaming from your phone tablet or computer. The yu4 includes multiple connection options including rca aux optical and a subwoofer output making it easy to integrate with new or existing gear. Theres also a usb charging port for powering a smartphone or media device along with signal sensing for automatic power up and standby. This makes the yu4 a flexible and easy to use option for anyone needing reliable high quality sound across a range of devices.