... audio source (such as Laptop, PC, Mp3, Mp4, CD, DVD player, Mobile phone, etc) 3. SpecificationInput DC voltage: DV ... any trumpet .Meanwhile,it can absorb on the car windshield by the sucker to be a fashionable mini ... speaker in the car.2.keep playing 3 to 5 hours by ... in li-battery.3.play the songs from TF card and also from computer,mobile,MP3,MP4,Ipod,PSP,CDand DVD ...