Edifier R1850DB Active Bookshelf Speakers with Bluetooth and Optical Input - 2.0 Studio Monitor Speaker - Built-in Amplifier with Subwoofer Line Out

DIGITAL / ANALOG INPUTS - RCA/Aux for PC, turntables, etc; Optical/Coaxial for lossless connection; Bluetooth for convenience BLUETOOTH V4.0 - Latest wireless technology for playing from phones, tablets or laptops TREBLE/BASS CONTROL, SUB-LINE OUT: Adjust bass, treble, volume and toggle inputs on rear panel. Need a little more oomph? Add a subwoofer to your 2.0 setup by simply connecting to the sub-out jack WIRELESS REMOTE - Handy compact remote control for input selection, volume adjustment and track control (Bluetooth). 2 YEAR WARRANTY - Guaranteed high quality and reliability with hassle-free parts and labor warranty for two years in USA and Canada.