If there's a dollar's worth of stuff in this thing, I'd be surprised. You could pay close to $10 for the convenience, but it has other downsides as well. First, the description says the bottom line length is 6 feet. It's just over 4, so you're limited as to where you can place it. The second problem is technical. The jack impedance is 75 ohms and there is no antenna, resulting in losses due to impedance mismatch. I think that's overpriced junk.
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