... Technical parameterOutput power:2WSNR:>=80dBPlaying time:4-5 hours for earphone6-12 hours for loudspeaker (depending on the volume)Files system:USB charging ... earphone,recharger,Line-in & antenna in one hole5.Accompanying speaker for PC.Mp3,Mp4 and notebook iPod, iPhone…etc.6.Memory ... cards: U disk, SD, TF card7.Warranty: 1 year8.FCC, CE, RoHS ...