6.5" Outdoor Wall Speaker, (Buspro)
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/audio-systems/hdl-p287_rhythmus_outdoor-speaker-p287-(en-cn)
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/audio-systems/hdl-p287_rhythmus_outdoor-speaker-p287-(en-cn)