Push-button of panic route I remove Power G. Activation by means of great and accessible button. Led integrated to indicate the sign of transmission and the confirmation. Buzzer integrated for audible indication. Resistant to the water. Paper clip multifunction and strap for neck. Delay of 2 seconds in the button of panic. There works with 1 battery of lithium of 3V type CR2032. Dimensions: 53 x 33 x 11 mm.