... lithium Speaker / U disk / SD cmobile phone speaker, MP3 speaker, computer soun.dProduct parameters:Speaker: 3W * 2Size: 105mm * 95mm * wide ... listen to the phone perfect music player supports MP3, MP4, notebook computer, PC2, 3.5mm standard audio connections, and variety of ... time 2-3 hours4, designed for music phones and notebook computers 3.5mm standard interface connector, such as customer's ...