KNOB (97.9 FM), was a broadcast radio station on 97.9 MHz, licensed to Long Beach, California, with an effective radiated power of 79,000 watts. It went on the air in 1957 on 103.1 MHz at 320 watts. Its owner was Sleepy Stein, who was able to get permission from the Federal Communications Commission for a power increase by switching the frequency to 97.9 in 1958. In 1988 KNOB was sold to Spanish Broadcasting System and its format was changed to Spanish language. It is today known as KLAX-FM. In 2016 "The Jazz Knob" still exists on internet radio operated by micro-broadcaster Ken Borgers.