JBL 104-BT Bluetooth Compact Powered Desktop Reference Monitors (Pair, White) - 4.5inJBL 104 BT compact reference monitors with Bluetooth, the newest models in the 1 Series line, draw from seven decades of JBL Professional engineering to deliver the truest, most accurate sound in their class. Theyre perfect for recording musicians, producers, podcasters and vloggers, as well as professional audio engineers seeking an accurate portable reference with Bluetooth streaming. JBL 104 BT Reference Monitors combine a powerful coaxial 4. 5