I fully agree with every word of Steve888.
You can have a good zapper for less than $60.
All zappers of mstrong1 are very well built.
You cannot go wrong with this one, or any other from this source.
Only a point to be aware of : Documentation. Little or none
Come back to Curezone if you need help, or ask to zapperwise.com their general manual about zappers:
“The zapper. What it is. How to use-it”
You should have-it for free.