This Smith and Wesson is a life-saving tool that can be used to free yourself or someone else in a life-threatening emergency situation. The Vehicle Escape Tool is both a seatbelt cutter and glass breaker. In addition, it provides daily practical use with dual USB chargers for your vehicle. 2.4V output gives it plenty of charging power. This product is only 2.63" long, which means it is small and compact while still effectively charging your devices and acting as a Rescue Tool.