Speaker Line Indicators

When the “SPEAKER” key is activated, the in-use light illuminates steadily RED above the “SPEAKER” key. The LCD will display “SPEAKER” when active

Hold Key Indicators

When the “HOLD” key is activated, the light above the HOLD KEY will be steadily RED. The LCD will display “HOLD” when active

Headset Key Indicators

When the “HEADSET ON/OFF” key is activated, the Headset indicator will be steadily RED. The LCD will display “HEADSET” when active

Contrast

Volume

Contrast

Volume

Contrast

Volume

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Spectrum Brands SP-550 manual Speaker Line Indicators, Hold Key Indicators, Headset Key Indicators