Vivitar AF400 35mm film camera

The Vivitar AF400 is a simple 35mm point-and-shoot from the 1990s with a fixed lens, autofocus, and selectable flash modes.

The camera requires two AA batteries (not included). We unfortunately couldn't locate a manual but the camera is very easy to use. The camera's focal length isn't indicated on the camera but appears to be a wide-normal (probably 35mm). 

Condition note
The camera is in good cosmetic and functional condition. We ran film through the camera and tested all modes (we did not develop the film).

Example photos
Here are some pictures that other people have taken with this model of camera: 
https://www.lomography.com/cameras/3352512-vivitar-ps-20/photos