This is the wearable communicator that lets you speak to a 911 emergency responder with a single touch. Providing peace of mind for those (and their loved ones) who live alone, or travel, hike, and shop by themselves, the credit card-sized pendant provides an instant link should you need emergency assistance. Unlike medical alert systems that rely on a call center middleman, with a push of a button this pendants speakerphone contacts the nearest 911 operator via the cellular network to summon help quickly. It allows users to maintain their independent, active lifestyle anywhere there is cell phone coverageregardless of your service provider, or whether you have cellular service at all. And with no long-term contract, monthly service fees, or expensive batteries to replace, it's a most cost-effective solution. Includes neck strap and three AAA batteries. 2.5" H x 2" W x .0.5" D. One-Touch Immediate Assistance Simply press the large SOS button for 3 seconds to activate the two-way voice communicator. Directly calls 911 for immediate, personal assistance. Built-in microphone and speaker for instant communication to get help. Features One Button to Call 911 Direct Standard AAA batteries Accidental Call Cancel Button One Year Battery Life 2-way voice connection Break-away lanyard included Protective button cover included Splash resistant & durable Includes: SmartGo 911 Help Now Pendant - White 3 AAA Batteries Neck Strap User Manual 1-Year Warranty