PREMIUM POWERED BLUETOOTH SPEAKER - The A2+ Bookshelf Speakers are the best wireless speakers to use as gaming monitor computer speakers, record player speakers, sound bar surround system for TV, and more. The extended-range Bluetooth quickly and seamlessly connects to phones, tablets, or desktop computers up to 100 ft away. BLUETOOTH SPEAKERS WITH SUBWOOFER OUTPUT - Audioengine Speakers Bluetooth Wireless apt X offers USB audio input, dual analog audio inputs for connecting multiple devices, subwoofer output, 2.75" custom aramid fiber woofers, and 0.75" silk dome tweeters. Works as Mac or PC speakers out of the box with no hassle or software to install.