Alarm with Vibrating Remote up to 84V?

Looking for something like this:
https://www.aliexpress.com/item/1992228776.html
Which works up to 12V that will work up to 84V without using a dc converter.
I need an alarm for an ebike that will alarm in the remote while it's going off (in the link they claim up to 1000m range)

why don't you want to use a converter?

john61ct said:

why don't you want to use a converter?

Click to expand...

Trying to minimize mess...it's another cube with more wires...