I bought a Ugreen headphone jack (3.5mm stereo) with RCA connectors to connect to my Alexa Echo Dot (3rd gen). This is a high quality product that was well packaged. At the same time I bought an RCA "male" cable to a speaker (from another manufacturer) to connect to an old pair of realistic mini speakers I had. The connection itself was good, but the echo dot doesn't have enough power from the headphone jack to drive these speakers to medium volume, so I'll have to find a small powered amp or speaker to get what I want.
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