HERO and AIIRO Products: Customer Information

On August 6, 2026, Byrna Technologies Inc. acquired the HERO and AIIRO brands and related assets from Hero Defense Systems, LLC. Hero Defense Systems, LLC remains a separate company.

Manuals and Safety Information

Current product manuals, safety warnings, and documentation are available below. Read them before using your product.

• HERO 2020 User Guide (PDF)
• AIIRO User Guide (PDF)

Purchased on or after August 6, 2026?

Contact Byrna customer support for help with your order or product.

Purchased before August 6, 2026?

Those products were sold by Hero Defense Systems, LLC. Warranty coverage and other obligations for those products are not Byrna's responsibility. However, if you have a question or product issue, please reach out to Byrna customer support and we'll do our best to assist you.