I have bought two of these. One seems fine. On the other, the male jack is loose, and the connections inside fizz and crackle. Both adapters work better splitting downstream (one input two outputs) than joining upstream.
I have my doubts about how long the one that works will last. But too cheap to be worth returning.
I ordered 3 of these as well as 3 of the stereo type and within minutes of taking them out of their packaging 1 of these fell apart in my hand. Another just doesn't grip on to the jacks. So 1/3 are usable which is disappointing. Fortunately the Stereo versions work fine with Mono Jacks.
All this said they're so cheap I don't know what I expected. The stereo versions I bought and the 1 of these that works do their job fine, Not too much noise splitting 1 source to 2, a fair bit of noise combining 2 sources to 1 but that's not what they're for.
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