This EPIRB is a breakthrough product that boasts a digital display and dual GPS technology.Digital Display: GlobalFix iPRO sports a digital display that allows you to see all of the beacon's operational activities. The screen displays GPS LAT/LON, operating instructions, usage tips, transmission bursts as well as battery power.Dual GPS Technology: The GlobalFix iPRO is also the first EPIRB that offers Dual GPS Technology. Interface your iPRO to your onboard GPS to ensure that your LAT/LON is stored inside so the coordinates are transmitted in the first data burst. iPRO's internal GPS is optimized for cold starts and is tested and refined at ACR's GPS Simulation Center so that it will pinpoint your exact location faster than standard GPS enabled EPIRBs.GlobalFix PRO offers the very latest in marine electronic life saving technology:Highly visible LED strobe is energy efficientHigh efficiency electronics for performance you can count onProfessional grade design is engineered, tested and built for years of abusive marine useErgonomic, compact design; smallest, most feature-rich EPIRB availableSpecificationsFrequency: 406 MHz with 121.5 MHz homingActivation:Automatic release (Category I)Battery Type: Class 2 (non-hazmat) lithium batteryBattery Life:6-year replacement life, 65 hour operational lifeStrobe: White, 20-30 flashes per minuteGPS:Internal 66-channel receiverMaterial: High-impact, UV-resistant polymerWaterproof Rating: Waterproof to 33' for five minutesWeight(Beacon Only): 20.5 oz.Dimensions:7"H x 4 1/4"W x 3 5/8"DApprovals: Cospas-Sarsat, FCC, MED, IC Acceptances: USCG Meets: GMDSS, RTCM, IEC, and IMO standards406Link.com: 120 satellite detectable basic self tests (available only in the Americas)Warranty: Five years Product Support ManualRegistrationAs the owner of this 406 MHz