Edifier R1010BT 2.0 Book Shelf Bluetooth Speaker Housed in 100% medium-density fiberboard (MDF), this R1010BT is the revisitation of the Edifier classic, the R1000TCN. Featuring 4” bass drivers and 3/4” silk-diaphragm tweeter drivers, R1010BT bookshelf speaker is engineered to deliver commanding sound with subtlety and details. For a personalized listening experience, you’ll find the bass and volume adjustment dials at the back of this bookshelf speaker. R1010BT also features dual stereo line-in ports, with dynamic treble enhancement on port A. Most of all, it is Bluetooth ready