This cheap little receiver/BT amplifier will suit your needs when indoors are at stake or where a large expensive system is undesirable. I like the bass/mid/treble tone controls which some don't have. There are mic inputs if you like karaoke which I don't use. Radio reception is limited as is the BT receiver, I got about 10ft with my iPhone Xs. The wireless connection is IR so you need to be nearby in line of sight. With some JAMO IO4s the sound gets sweaty and quite loud until it goes over 80% and starts to distort a bit.
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