Logitech Z407 Bluetooth computer speakers with subwoofer and wireless control – gives you immersive sound, big bass, and clarity. Connect with Bluetooth, micro USB, and audio jack, and control with the wireless dial. IMMERSIVE SOUND – The expertly tuned 2.1 speaker system features 80 watts of peak power and 40-watt RMS. Digital signal processing offers a balanced sound profile and enhanced bass, so you hear everything across the sound spectrum. Experience immersive, lifelike sound?from crisp high notes to powerful mid and low-range notes?with no compromises on the rich, deep bass. STRONG BASS WITH CLARITY – 20-watt bass with digital signal processing produces deep yet clear bass and superior sound performance. The ported, down-firing subwoofer adds ?boom? to music, movies, and gaming while maintaining a rich, crisp sound. ONE DIAL FOR TOTAL WIRELESS CONTROL – With a 30 m line of sight range, the wireless control dial lets you adjust your sound from across the room. Tap it and spin it to play, pause, and mute?and control volume and bass. Do it all from the control dial. It?s easy, and you don?t even have to get off the couch. DUAL-POSITION SPEAKERS – Sleek, oval-shaped satellite speakers come in a refined graphite gray. Lay them vertically or horizontally. Move and curate to fit your aesthetic preference. MULTIPLE WAYS TO CONNECT AND SWITCH – You?ve got options. Connect up to three devices via Bluetooth, micro USB, and the 3.5 mm input. The source selection button on the bottom of the dial switches between wired (3.5 mm and micro USB) connections. Quickly switch back to Bluetooth by pressing the Bluetooth button.