Edifier R1380DB-BLK 2.0 Professional Bookshelf Active Speakers – Black – Wooden Enclosure – Class-D Amp (42W RMS Power Output) – Bluetooth 5.1 Connection – Qualcomm aptX Technology – Digital Chip and Powerful Tweeter – Frequency Response R/L: 55Hz-20kHz – Audio inputs: Line In, Optical, Coaxial, Bluetooth – R1380DB-BLK – 12 Months Limited Warranty