Interface type :USBThe connection method :3.5mm audio jackBattery capacity :750The power supply mode :Built in lithium batteryFrequency response range :40Hz-20KHzThe output power :3wSignal to noise ratio:≥70dbVocal tract:2.1Bluetooth protocol :2.1Shell material :PlasticAppearance size :122*100*100(mm)Display screen:No



GR, LESVOY