130Db Personal Alarm, Emergency Personal Security Alarm with LED Flashlight Safety Defense for Women, Night Workers, Kids, Elderly, Wrist Strap for Activation. Safety alarm with 130dB, sounds loudly to draw people's attention even in a far distance. Emergency alarm draws power from button cells, is ideal chooice for all people as self defense weapon. Press the button to activate the light, it offers a great assisstance when you walking in darkness.