... with sound :1.Application:for shoes, clothes, hats,toys etc which need to flash.2LED color:white,red,blue,yellow,green ,color changing ... avaiable6. Components: Voice IC,PCB board, speaker and battery7. Sound formate: MP3,WAV8. Switch Option: Pull-tab switch, push ... Application: Greeting card, gift/package bags, gift box, electronic sound toy, sound gift etc11. Certificate: CE ROHS FCC12. OEM and ODM ...