It has no extra jack, headphone jack or extra speakers. The audio output power is 2.5 watts per channel, so it is not noisy (when working). The sound is ok, the bass is not enough to let the music sound good. What do you expect in this price range? Answer = weak, you are right. When you play a CD loudly, the laser jumps due to vibration. Playing mp3 via USB is a nice feature. For $$ this is a standard solution for background music in a small room. It will still break if handled carefully, and NAXA after-sale service is a bad joke with secret policy, useless if the item break under warranty. prefer to spend more.
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