... For PC 2.Stereo sound quality 3.Can be used with mobilephone,all device with 3.5mm 4.In stock USB Multimedia ... Speaker For PC Specification:1. 2-channel conversion2. Horn anti-magnetic ... DBImpedance: 4 OhmsPower supply: USB power supply 5V Features:1, compact, USB-powered, portable and easy to use.2, PC, MP3, MP4, MP5 ...