Small and mighty, the ResQLink+ is the new buoyant, GPS-enabled rescue beacon designed for anglers, pilots, and back country sportsmen. With three levels of integrated signal technology - GPS positioning, a powerful 406 MHz signal, and 121.5 MHz homing capability - the ResQLink+ accurately relays your position to a worldwide network of search and rescue satellites. Super bright LED strobe light provides visibility during night rescues. Even in extreme conditions and situations, the ResQLink+ activates easily and guides rescuers to within 100 meters or less of your position. Self-test and GPS test features with a simple push of a button. Non-hazmat battery. Typical performance of 30 hours. 1.6" x 1.9" x 4.5".
ACR Electronics has usually good products, and this additional called ACR 2881 ResQLink+ Personal Locator Beacon is not an exception. It's one of best product around this price.