With continuous use or battery life, it lasted almost 3 weeks during which I forgot to turn off the flashlight all night twice. It is indeed bigger than the classic ones and at first it feels a bit strange.
The downside I would say is the lens, which compared to others is not as powerful. Personally, I wouldn't change it for anything. One of the best purchases I have made

The best of all that I have tried, and they are not few, is excellent, and with a backup battery you never run out no matter how many mosquitoes there are!!!

I agree with the other reviews. It is a sturdy and effective construction!
Just a small clarification: it is gigantic!!! Its size is not apparent in the photo, it is slightly smaller than a professional tennis racket! I just mention it because some users may find it difficult to handle. Other than that, it is a good product.

Good construction (made in China for a Polish company), effective in exterminating insects. The 2-in-1 capability refers to the flashlight that the racket has.
I will come back to you regarding the battery life. It does not have its own charger, you use your mobile phone charger. It only provides you with a cable and instructions for use in all languages except Greek.

It really made us look good :)
As for the build quality, it is much better than any other racket we have had - different versions of the cheap 5 euro one.
+ It has a much nicer design.
It charges with a micro-usb that most mobile phones have, with an indicator that works correctly.
The flashlight that has a position option on the switch works fine (although it is not the preferred hunting mode for me) .. but the main function was ultimately as an indicator - if it doesn't turn on, it needs charging.
It lasts for 2-3 days for sure .. and longer depending on usage.
The battery has a slightly strange form factor - Lithium 18650 .. but it comes out without unscrewing anything and is available in stores for 2 euros.

Note for couples:
It was like staying with Sakkaris all summer long.