Donner Stereo Bookshelf Speakers, 4" Bluetooth 5.0 Active Home Audio System, for Computers, Televisions, Smartphones, Tablets

👂PREMIUM SOUND QUALITY - With a 60W RMS superpower, Donner A40D active speaker is a LONG-STROKE speaker with outstanding sound quality. The treble is delicate and the bass is surging, A40D will definitely bring you a LOW DISTORTION and PREMIUM sound experience. 💿PERSONALIZED SOUND ADJUSTMENT - Donner A40D active speaker support customized sound effects by controlling the volume of treble and bass. You can easily make up your ideal sound effects by adjusting the knobs on the side of the speaker. And the volume knob is also a button to switch the input channel. 📱BLUETOOTH 5.0 CONNECTION - Equipped with Bluetooth 5.0, Donner A40D speaker has a more stable connection, higher sound quality and lower latency. 🔀COMPLETE IN&OUTPUT CONNECTORS - Donner A40D is equipped with one subwoofer output, and double RCA input. Meanwhile, A40D has PC input, AUX input, OPT input, COAX input, USB DAC input, one of each. And the connectors are gold-plated, durable and good-looking. 🛡️MAGNETIC DUST GRILLE - The innovative magnetic dust grille is easy to install and you can assemble them in seconds. They are also very stable and durable, which can protect your speakers not to be messed us by dust for a long time.