2 in 1 130 dB Personal and Door Alarm

This 2 in 1 130 dB Personal and Door Alarm is activated when the strap attached to the alarm pin is pulled. You can carry in your hand and pull wrist strap to activate. Wear on waist, belt or carry in pocket or purse. Hang on door at home, hotel, motels or college dorm rooms etc. The Door Alarm accessory converts the personal alarm into a portable door or window alarm. Requires one 9 volt battery (not included). Size: 2⅛" x 2¾"