It suddenly turns on if it's not waterproof.
I tried it right away. It was a long time, but good value for money. But it's bigger than I thought. After 5 days of writing, I was surprised to hear the operation sound suddenly. You can't remove the battery, but turn it on again. I asked if I could return it. I couldn't write the receipt date in the manual. And if you upload a video, I'll ask the manufacturer how to deal with it. When I left it because it might turn on suddenly and I didn't like the noise, I turned it back on today, and took a video. I couldn't turn it on suddenly, but only the on / off button didn't work. Rating : 3/4 Nov 14, 2019