... products have been applied in costume widely. Recordable modules are waterproof,have been applied in custume,T-shirt,cap widely.Use ... one.Specification:Power supply:2 AG10 batteries(each 1.5V)Battery life:play for 300-500 timesSpeaker:27mm,36mm,40mm in ... .Shape can be customized as client's request. Recordable Module(Waterproof)