Set up your home studio with these Edifier active bookshelf speakers. The Bluetooth technology lets you connect devices wirelessly, while the optical, digital coaxial and two stereo RCA inputs allow lossless connection of up to four sources. These Edifier active bookshelf speakers feature separate bass and treble volume knobs for controlling the output to your taste, and the 10-degree angled design provides directed sound. | Edifier | | R1850DB Active Bookshelf Speakers, Computer Speakers | Bluetooth and Optical Input | 2.0 Studio Monitor Speaker | Black | Best Buy