Have been using this type of speaker for about 40 years or more. They typically last around 5 years or more if you never pull the speaker wire connected to the radio. The tone is controlled using the controls on your radio. The sound quality is sharp. No static electricity unless the radio itself has static electricity. Almost flat so you never feel it under your pillow. Oh yes, it's a personal speaker, so you're the only one who can hear it. It will not disturb the person sleeping next to you.
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