O 106.5

O 106.5 (CFEI-FM) is a French-language radio station based in Saint-Hyacinthe, Quebec, broadcasting on 106.5 FM. The station began operations on March 30, 1988. In 1999, it was acquired by Lucien Rémillard and later sold to Astral Media in 2001. By 2003, it had joined the "Boom FM" network, known for playing hits from the ’70s, ’80s, and ’90s. Following Bell Media’s acquisition of Astral in 2012, the station remained under new ownership until February 8, 2024, when it was sold to Arsenal Media. On April 22, 2025, the station rebranded as "O 106.5", featuring a vibrant mix of Hot Adult Contemporary and Top 40 hits.

Is a radio station reinvents itself while honoring its roots, offering energetic playlists that blend nostalgic favorites with today’s chart-toppers.