Description: USB Powered: USB power supply, plug and play, used for desktop computers, notebooks, tablets and phones. Simple wired connection, every one can use it. High Quality Sound: Computer speaker features dual powerful sound drivers, delivering impressive sound field and excellent sound quality. 3.5mm Audio Plug: Audio plug quickly connects to most PCs and mobile devices. Need to connect audio plug to computer for sound to operate. Volume Control: Dial wheel to adjust the volume, simple, convenient and more practical to use. Portable: Mini size, lightweight, easy to carry and use. Beautiful and fashion, not occupying space, perfect for home and office. Specification: Material: ABS Plastic Output Power: 3W x 2 Voltage: DC 5V Speaker: 2 x x52mm SNR: 60dB Power Suppy: USB Cable Connection Method: 3.5mm Audio Interface Quantity: 1 Pair Size Chart: 101x94x94mm/3.98x3.70x3.70inch Package Includes: 2 Piece Laptop Speakers 1 Piece USB Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!