Ready made "buzzers"

Hello,
I’m a non- electronics guy looking for a solution for a new product I am manufacturing.
I am in need of a “buzzer device” that utilizes a button as a activator with a battery (9v or AA battery) power source.
I’d like it to be a manufactured unit if possible instead of me having to have it assembled.

Any help with a direction (website of a source) would be appreciated.

RichD

This is a standard electronic part yu find at the normal suppliers like Digikeydigikey.com/product-search/en/audio-products/buzzers/720967