The station's studio is located at the RMN Broadcast Center (Canoy Bldg.

Echem St., Cagayan de Oro, and its transmitter is located at Brgy.

On August 16, 1992, the station was relaunched as Smile Radio 99.1 with the slogan "The Voice of Music".

[4][5] On November 23, 1999, Smile Radio was rebranded as 991 VMFM (pronounced as "nine-nine-one") with its slogan "Live It Up!".

After the shutdown of ABS-CBN's MOR, iFM took advantage and dominated the airwaves as the undisputed overall number 1 Radio Station in Cagayan de Oro, including social media platforms.