VM Audio EXAT20 Cherry/Black Floorstanding Powered Bluetooth Tower Speakers Pair High Frequency Driver: 1  Composite Soft Dome Driver Midrange Driver: 4 Treated Composite Fiber Diaphragm Low Frequency Driver: 8 Side Firing, Dual Pulp Cone Woofer Applications: PC, MAC, DVD, TV, Tablet, Smartphone, iPod Audio Input: Analog RCA