1. Easy to Use: Plug the USB cable into the power supply and plug the 3.5mm cable into the device's output (such as PC, laptop, smartphone). Then turn on the speaker's power switch. Turn the rotary knob to adjust the volume. 2. Superior High-Quality Sound: Increase the anti-magnetic chip, reject static noise. Provides an enjoyable stereo sound experience, allowing you to enjoy movies, videos, music, and games in your room or office. 3. High Compatibility: With 3.5mm line input, you can connect to a variety of devices. Such as: PC, laptop, desktop computer, tablet, all types of smartphones, such as 3.5mm jack equipment. 4. Exquisite Design: Smooth rotary knob for easy volume adjustment. Rotary start, faster and easier. Lighter, thinner body. Perfect match with your computer, while allowing you to enjoy the fun. 5. Save Space: The desktop speakers are compact in size, perfectly placed under the computer monitor. Free up desk space and reduce cable clutter. Create more order on your desk.