Pair Speakers Amplified 100+100 W With Reader mp3 SD Card USB Web LY-33U - Usat. The description of this item has been automatically translated. Pair of amplified speakers 100+100 w with mp3 player sd card usb Web LY-33U - Used. A powered speaker that amplifies both speakers. Pair of amplified speakers 100+100 w with mp3 player sd card usb Web LY-33U - Used a powered speaker that amplifies both speakers.