When it comes to overall sound quality, don't hesitate on R1700BTs active bookshelf speakers, it produces the cleanest and most compelling sound you'll hear. The R1700BTs is a 2.0 active bookshelf speaker with Bluetooth 5.0 with aptX, you can enjoy listening to your phone or tablet in wireless freedom within 10m effective Bluetooth transmission range, suitable for iOS, Android, Mac, or Windows devices. 15W*2+18W*2 RMS, 19mm silk dome tweeter unit, and 4 inches woofer unit to ensure the speaker has an energetic response and distortion-free sound. Wirelessly control the speaker with the include remote, no need to left the couch every time you want to make some adjustment. Adjustable dials located on the side of the speaker to control volume, bass, and treble. Whether it is keeping a party going, crafting immersive TV experience, or enjoying good sound quality, R1700BTs speaker is always your first choice.