Bigger than expected. Not a tiny flashlight, but so tough. The material is top. Alarm sound is quite annoying. Maybe the price is high but you are paying for the technology. We'll see the battery degradation with the time. No doubt it's an interesting item. The real price should be 10-13$ to be a bargain.
ordered 24/11/2020, received 27/01/2021.... the item was right, but the shipping has been the worse experience in AliExpress... terrific slow.