Sanwa Direct PC Speakers, High Output 36W, USB Powered, 3.5mm Stereo Mini Jack Connection, Headphone Compatible, Bass Adjustment, 400-SP082

This USB-powered speaker draws power from a USB port. Since it doesn't require an AC power source, wiring is neat and easy, making installation easy. It features a large internal capacitor to achieve high output power not possible with conventional USB-powered speakers. It features a PRAC (Power Reserving Amplifier Circuit) that stores power within the capacitor and delivers high output when needed. The audio output is via a 3.5mm stereo mini jack, so you can enjoy music simply by connecting it to the audio terminal of a computer, TV, or other device. The built-in BASS control allows you to adjust the sound quality to your liking. An external input (AUX IN) on the front allows you to easily connect a smartphone or other device for music enjoyment. The headphone jack is convenient for late-night listening or when you need to be considerate of others. The power ON/OFF switch (on the back) and volume control switch are independent, so you can enjoy music at your usual volume immediately by simply turning the power ON.