JBL, DELL and Asus Multimedia Speaker Dynamic Listening Frequency Response : 100Hz - 18KHz Power Supply : 5v / 1A RMS : 3W*2 ( THD < 1% ) Signal Noise Ratio : 8dB Impedance : 4ohm PC Video : CD-R / RW USB 2.0 Rich and strong stereo sound Built-in Four Loudspeaker Diaphragm and Subwoofer Multimedia Speakers,The laptop USB speakers deliver Clear Rich and strong stereo sound for your computer,Turn your desktop computer or laptop into the ultimate sound system. These USB Powered Computer Speakers will fill the room with your music, movies, or computer games. The Compact Design The small size allows the speakers to easily sit on your desk. And the USB power means you can take them with you and plug directly into your computer for music on the go. Note: When you will use it for your laptop/Pc/Desktop Please make sure that both USB Plug and 3.5mm Jack are installed correctly. When you want to use it using your phone Please make sure that the USB Plug is connected to a charger or powerbank or any other current supply and the 3.5mm jack to your phone. If you want to connect the speakers to your Television please choose the Speaker +2rca in the variation. Plug and PlayPlus 3.5mm to 2rca line, the speaker can be used for TV, TV can be used.