Personal alarm keychain shaped pull the strap,emit 130DB suit for older, alone and disabled persons Personal alarmMterials: ABSBattery: 3PCS*AG13Size: customizedLogo: can be printedkeychain shaped ,the color and shape also can do as per customer requirementspull the strap,emit 130DBsuit for older, alone and disabled personsMini designs, as the key ring ,is portable PackagingEach one in a colorful ...