Melody module with LED light PCB size:2.8*1.9cm 2pcs AG3 battery,buzzer,1 led light Suit for greeting ... card and gift box. Melody module with Led ... PCB board,ic chip,2pcs battery,27mm buzzer,led light,sticker,slide tongue switch Function when stick ... Melody list 1.Happy birthday day to you 2.Twinkle twinkle little star 3.A small world 4 ...