• Transmits on 406 MHz via the COSPAS-SARSAT satellite system with your registered unique, digitally coded distress signal and 121.5 MHz (SAR homing frequency) • Onboard 12 channel parallel GPS acquires then transmits LAT/LON when the unit is activated, dramatically saving valuable time for your distress message to reach local rescue centers and providing rescue agencies with your exact position to within 110 yards (100 meters) • Smallest and most functional PLB available; can be easily carried in a pack or pocket; small enough to be worn on deck by yachting racers, crew, solo cruisers, and any other marine enthusiast • Lanyard and removable plastic holster provides functionality and allows for multiple mounting options on belt, webbing, and life vest • Full functional self test of internal circuitry, battery voltage & power, 406 MHz transmission, and GPS acquisition • Flat, stainless steel antenna wraps compactly around the unit for easy stowage; and is ready for rapid deployment • Exceeds RTCM waterproof requirements.• Size: 1.4 x 5.85 x 2.21 in (35.5 x 149 x 56 cm) • Weight: 9.98 oz (283 g) • Batteries: Class 2 lithium battery packs, (non-hazmat) min. transmit 24 hrs @ -20°C; 5 year replacement life (11 year storage) • Material: Engineered polycarbonate blend • Color: Hi viz ACRtreuce • Storage: -40°F to 158°F (-40°C to 70°C) • Deployment: Manual • Activation: Manual • Operation: 2 steps: deploy antenna, press ON button, giving clear view of sky • Waterproof: 16 ft (5 m) @ 1 hr., 33 ft (10 m) @ 10 min. Factory tested @ 70°F; Exceeds RTCM waterproof requirements • Certification: COSPAS-SARSAT• Limited Warranty: 5 years • Radiated Power: 5 W ±2dB (406 MHz) 50 mW ±3dB (121.5 MHz) • Operational Life: In excess of 24 Hours @ -20°C (-4°F) Typical performance is: 36 Hours @ -4°F (-20°C) 20 Hours @ -40°F (-40°C) Longer in higher ambient temperatures