DUAL RCA INPUTS - Easily connect to any devices with RCA to RCA/3.5 mm-RCA audio cable. Connect to two devices at the same time, no more plugging and unplugging. (None Bluetooth version) SUPERIOR SOUND QUALITY - 42W continuous undistorted power, 4-inch sub-woofer unit and 13mm silk dome tweeter unit ensure strong bass and bring more impactful sound. 8' SPEAKER DRIVER - Delivers powerful sound with highly accurate, distortion-free bass to provide you with a better listening experience. LOW PASS FILTER WITH FREQUENCY RESPONSE DOWN TO 38Hz - Ensures that your woofer only plays sounds too low for your speakers to properly output. Supplement your speakers great high and mid-range with bass you can really feel. 2 YEAR WARRANTY - Edifier guarantees you'll have an amazing experience with our products. Buy with confidence, and enjoy our 2 year warranty.