Bluetooth connectionBluetooth® lets you play tracks from smartphones and tablets wirelessly, with Qualcomm® aptXand AAC support for superior sound quality.Front-loaded bass reflex system4-inch fiberglass woofers provide powerful, crisp bass at the front, while the grooved air ducts reduce the air resistance. You can feel a deep bass kick, even if the monitors stand directly in front of a wall.3D stereo soundThe DM-40BT ¾-inch (1.9 cm) soft dome tweeters are equipped with DECO convex diffusers that distribute the high frequencies in all directions.Runtime synchronizationClass AB amplifiers deliver a crisp sound with low distortion. High and low woofers are perfectly arranged to ensure synchronous sound propagation and balanced reproduction of all frequency ranges.Intelligent designThe curves on the loudspeaker front ensure maximum stability and minimum resonance. This produces a clean sound at any volume and also looks really good.This text is machine translated.