<ul><li>Microphone and Headset JACK: Connect your headphones or microphone directly with the headset and Microphone jack option</li><li>Special features: Mini, Portable</li><li>Speaker Type: Portable</li><li>Cabinet Material: Plastic</li><li>Channel 2 (2.0)</li><li>Brand name: Kisonli</li><li>Model number: I-580</li><li>Power supply USB: DC5V</li><li>Output Power: 3W * 2</li></ul>