The SGActive is especially designed for active people on the go.  School kids, walkers, climbers and joggers would all benefit from having the SGActive.  This exciting new alarm is made from sturdy ABS and has thick absorbing sponge on the barrel ends and a reflective strip.  The pin is held captive with a karabiner clip.  An 'on/off' switch on the side eliminates accidental activation.  120 dB siren.  Battery LR44 x 3 included. 30 mins continuous alarm from fresh batteries. 60 x 30 mm weight 30 gms