Features： 1、Running in the morning, feeling uncomfortable and unable to scream, press the switch and immediately make a sound to attract others. 2、Children are easily abducted by strangers, just press the switch to scare away the hijackers. 3、At night, the lady is easy to be targeted by the bad guys, turn on the switch, alarm sound can immediately scare away the bad guys. 4、When the old man lives alone, if there is an abnormal situation, press the switch, the sound made can make others pay attention. 5、Wrist design, easy to carry, acrylic mirror, show the good texture of your watch. Specification： Item Type: Wrist Personal Alarm Additional Function: Can increase the flashing light function, let the LED light flash at the same time as the alarm, play a warning role. Battery Type: 3pcs LR44 Button battery(Not Included), can continue to alarm for more than 1 hour. Material: ABS Use Method: When the side switch is turned on, the alarm will sound, and vice versa. The front hole is a sound hole. Package List： 1 x Wrist Personal Alarm 1 x Introduction