ResQLink™ 410 RLS Small but resilient, the ResQLink 410 RLS has been professionally engineered and tested to ensure it can withstand even the harshest elements.  This buoyant Personal Locator Beacon (PLB) requires no subscription for use and with the inclusion of the new Return Link Service (RLS) feature, this ACR beacon provides you with the comfort of knowing that your distress message has been received and your location detected.With three levels of integrated distress signaling technology – GPS positioning, a powerful 406 MHz signal, and 121.5 MHz homing capability – the ResQLink 410 RLS quickly and accurately relays your position to a worldwide network of search and rescue satellites.  Additionally, a built-in strobe and infrared strobe facilitate nighttime, or other low visibility, rescues.  Whether on land, at sea, or in the air, trust that the ResQLink’s satellite precision and military durability, put rescue in the palm of your hands.  Wherever your adventure takes you, whether it’s a trip to the highest mountain peaks, the most undiscovered terrain, or the vastest of oceans, rest assured that the ResQLink 410 RLS always activates easily.  Simply deploy the antenna, press the on button, and the beacon will provide you with confirmation when your distress message has been received and your location detected, while also effortlessly guiding rescuers to within 100 meters or less of your position.*Does not require a Subscription Features:Return Link Service (RLS) functionalityBuilt-In buoyancy and waterproofStrobe and infrared strobeGlobal coverageMEOSAR compatibleSmall and lightweight5 year battery life24+ hours operational lifeTechnical Specifications:Dimensions (L x W x D) - 4.52" x 2.03" x 1.49" (11.48 x 5.16 x 3.78cm)Weight - .33lbs (148g)Battery - Non-hazmat Lithium (included)Battery Replacement - Five years or after emergency useGPS - Multi-constellation receiver (GPS & Galileo GNSS) Activation - ManualIn the Box:ResQLink™ 410 RLSMultifunction Clip SystemInstruction Manual *Sold as an IndividualThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.