UST Marine 2.0 PFD Signal Kit Pfd signal kit Essential kit High-pitched rescue Contains marine survival essentials including See-Me 1.0 LED Strobe light, Hear-Me marine pealess whistle, Reflective Tape and Find-Me signal mirror Strobe flashes at a rate of 60 flashes per minute Unbreakable lifetime LED bulb never needs replacing LED strobe light emits 28 lumens of 360 degree light visible up to 2.7 miles Impact-resistant and waterproof (IPX7 rating) Runs for 44 continuous hours on one set of 2AAA batteries