... duration With LED lights in card For gift,promotion,invitation,etc. CE,RoHS Good quality,price Voice recorder paper greeting card with cutomers ... 8ohm,0.5W,plastic case Buzzer for mono tone> With LED lights for decoration,could be customized> Standard dimension: ... card could be customized.> Could be used for different occasions and usages> OEM and ODM is accepted Musical paper greeting card with LED ...