Protect What Matters Most, Keep You and Your Family Safe and Secure. There are many self-defense alarms available in the market that can be used by women to protect themselves. The Oveallgo ULTRA 130dB Loud Self Defence Alarm Keychain with LED Strobe Light. It has a 130 dB loud emergency personal siren ring and an LED light. The device is portable and can be used by women, kids, elderly, and joggers. It comes with a USB charger cable and can be fully charged in 1 hour. The device can provide up to 90 minutes of continuous alarm with a flashlight, and about 1 year in standby mode. It is also equipped with an SOS safety alert device key chain that can draw attention in case you need medical attention or help. Oveallgo ULTRA 130dB Loud Self Defence Alarm Keychain with LED Strobe Light is an absolute must-have for women, teens, the elderly, and more.Self-defense alarms are compact and portable devices thatemit a loud and attention-grabbing sound when activated.They are designed tostartle and deter potential attackers, drawing attention to the situation and potentially dissuading them from further harm . Specifications: