This bookshelf speakers set is equipped with a 1" dome tweeter and a 4" bass driver in each speaker which creates rich lows and clear highs. With the front facing bass reflex port, low frequencies are emphasized giving the bass more power. Conveniently located dials on the side of the speaker allow complete control of audio, bass and treble. You can also alter your music from the ease of your couch with the wireless remote. It can be connected to more than one audio device through the two RCA inputs. You can connect to both your PC and television or record player with the R980T stereo speakers. No need to switch inputs. This buletooth connection allows you have the wireless connection experience. Don't hesitate to buy it! Offer the studio sound quality Easy to control the speakers with a remote Has the sturdy and elegant MDF enclosure with PVC Includes USB jack and SD slot Equipped the 4 inches woofer and 1 inch tweeter Includes the remote, AV cable, 3.5 mm cable, metallic yarn and power supply Connect to two devices via AUX at the same time No additional power amplifier is required Dials on the side of the speaker allow complete control of audio, bass and treble