Polara’s website: https://polara.com/
Orange County Register article about Polara’s accessible pedestrian signals: https://www.ocregister.com/2019/01/12/a-man-usually-tells-you-to-walk-not-a-woman-because-of-frequency-not-sexism/
Orange County Register article about Polara’s accessible pedestrian signals: https://www.ocregister.com/2019/01/12/a-man-usually-tells-you-to-walk-not-a-woman-because-of-frequency-not-sexism/