Small in size, this full-powered, GPS-enabled rescue beacon is designed for anglers, pilots and backcountry adventurers! Smaller than a cell phone, yet packed with power, the ResQLink offers three levels of integrated signal technology—GPS positioning, a powerful 406 MHz signal and 121.5 MHz homing capability.In the continental US, search and rescue personnel are typically alerted of your position in as little as five minutes. This beacon floats when used with the ResQLink Flotation Pouch, sold separately. Relay your position quickly and accurately In emergency situations, it relays your position quickly and accurately to a worldwide network of Search and Rescue satellites, while the built-in strobe light increases your visibility. Includes GPS and self-test features that can be combined with ACRs optional 406Link.com site functions. Frequency: 406 MHz /121.5 MHz Performance: 30hr. @ -4F (-20C) Strobe: Automatic bright LED strobe light Battery Life: 5-yr. storage/24-hour operation Dimensions: 3 7/8"H x 1 7/8"W x 1 5/16"D Waterproof: 16.40ft. @ 1hr.; 33ft. @ 10min. Weight: 4.6oz. Warranty: Five years