That is correct, the APC home theater units (available at Sam's Club for around $110) can disable beep from the front panel. I have 4 of them and they are all configured that way. The front panel LED display also shows input voltage, input frequency, charge state (run time), and actual power being consumed in watts. Very nice units, to be sure. A couple of my other (older) APC units can turn the sound off, and several of the even older units cannot turn the beep off, no matter what, and for those you have to learn to tolerate it, go take them off line, or disconnect the speaker internally.