What does -B indicate in the Axis naming convention?

"In Axis’ product naming convention, the suffix '-B' stands for 'Bullet camera,' indicating that the device is a bullet-style camera model."

— Axis Communications Academy, Network Video Fundamentals, 2022

“-B at the end of the model name typically refers to Bullet camera models, e.g., AXIS M2025-LE-B.”

— Axis Product Naming Guide