High Decibel Personal Alarms: Emergency self defense siren loud enough. The sound lasts for 50 minutes and has a flashing, the security alarms keychain even 300 yards away. LED Flashlight: You can easily turn on the LED light in the dark or emergency. USB Rechargeable Function:Personal security alarm is made of rechargeable lithium battery, using the USB cable to charge, 30 minutes for fully charged, standby 6 months, no need to replace the battery. Easy to Use:pull up the self-defense keychain alarm, the personal alarm will sound, inserting it to stop; double press the SOS button will also open the alarm, long press to stop.
