I bought this last year so I've had it for a few months now. That's why I'm not crazy. Water appears to be seeping into the extension cord, but that has no effect. I also wish it lasted longer. Other than that, this thing saved my new GoPro! I was paddling with feathers and somehow they must have fallen off my board. Luckily I went downstream. Noticing it was missing I went back upstream to look for it and here is an orange pen floating in blue water! I sing the praises of these floating sticks! 😁