4” Kevlar drivers and 1” silk dome tweeters deliver crisp highs and wonderfully balanced mid-range Integrated Bluetooth with Qualcomm aptX technology lets you enjoy high-quality streaming from the palm of your hand Equipped with a built-in phono preamp, Yu4 can be easily connected to any vintage or modern day Turntable Includes a remote to give you full control over your Audio Each speaker measures 5. 5" W x 7. 5" D x 8. 7" H (14 x 19 x 22 cm)