4.5" Studio Monitors with Bluetooth Connectivity and Advanced Waveguide Technology. Sporting 4.5” glass-fiber woofers and 1" silk-dome tweeters, TRUTH 4.5 BT monitor speakers bring high-quality audio within the reach of anyone with a computer workstation. Whether you’re a musician tracking your latest masterpieces, or just someone who listens to your favorite songs at work, TRUTH 4.5 BT will make them sound much better. Front-mounted volume and individual bass and treble controls make accurate sound adjustments a breeze. With a simple wave of your hand, you can stream music from any Bluetooth-equipped device such as your iPad, iPod touch, iPhone or even your laptop computer with the Bluetooth function integrated in the TRUTH 4.5 BT.