Review on 🆘 Sirius Signal SOS LED Electronic Visual Distress Signal with Daytime Distress Flag, Whistle - CG Approved: Stay Safe with Reliable Emergency Signaling by Colton Scheehl

This is a great product. It's definitely better than running flashes. The price is about the same as flashes, so I waited for my flashes to run out before purchasing Sirius Signal SOS. I find it more expensive than it should be. However, it becomes cheaper in the long run, since you only have to buy batteries every year and not flashlights every two years. It doesn't seem to be very bright during the day but I was able to check the view from shore when I was about 3/4 mile away.