This is a minimal case for the Heltec Wireless Tracker with a lipo battery. The user and reset buttons are supported, and the USB-C charging port is easily accessible.

Each corner has support for a wriststrap, rubber band, or elastic to attach to a pet harness.

Two versions are included - the original with a simple clasping mechanism, and and improved version where the top stays on better and a screw can be added for security.

I am certainly open to suggestions for improvements to the design. Designed using OpenSCAD.