The Pioneer DJ DM-40BT are a pair of desktop monitor speakers featuring an integrated Bluetooth connection for wireless use. The DJ DM-40BT Monitor Speakers are ideal for DJs providing an accurate frequency response coupled with high-performance components for optimal audio quality. The front-loaded bass reflex system features dual 4-inch fiberglass woofers for punchy and defined bass. The 3/4 inch soft dome tweeter provides 3D stereo sound providing a wide sweet spot. The Bluetooth connectivity allows you to stream music wirelessly from your smartphone or tablet device. The Qualcomm aptX and AAC support ensures optimal sound reproduction. The DM-40BT Speakers also features headphone output and front-panel volume knob for added flexibility.