Mackie CR4BT 4″ Multimedia Monitors with Bluetooth are designed for multimedia, with Bluetooth streaming that delivers ultimate flexibility for media creators and music lovers. Featuring 50 watts of power and premium transducers, CR monitors ensure pristine, accurate sound for any application. Choose which side of your desk gets the volume knob with CR’s speaker placement switch and take advantage of convenient front-panel features like a dedicated headphone output with level control. With Mackie Creative Reference monitors, you get professional sound quality and features in compact desk-friendly designs perfect for work, play and everything in between.