6.5” LONG-THROW WOOFER – D300 bluetooth speakers equipped with 6.5-inch large size midwoofer, large aluminum voice coil and copper wire voice coil, the driver system guarantees accurate detailed playback, bring more shocking sound quality performance capabilities. AUDIOPHILE SPEAKERS – With built-in high-efficiency,high fidelity isodynamic ribbon tweeter, low-distortion digital power amplifier module and wide-voltage switching power supply. D300 can reach 300W RMS dual-channel, which fully meets the desktop and various audio needs. HIFI BOOKSHELF SPEAKERS – Optical/Coaxial/Balance/Line input, can be used to connect PC, iPad, TV and other audio devices to achieve high-quality lossless audio transmission, instantly enjoy the hifi sound. ACOUSTIC ACCURATE DESIGN – Unique Acoustic Design optimizes the listening environment and effectively reduces noise to create a clear and natural sound. 3 adjustment knobs are rear-mounted, allowing for personalized sound adjustments, very easy to operate BLUETOOTH WIRELESS SPEAKERS – Bluetooth 5.0 aptX HD enables more detailed sound, faster transmission and lower latency. Plus, come with a wireless remote control makes it easy to switch input sources, adjust volume, input, power and mute.