"Megaphone" MP3 player
cults3d
Simple audio amplifier board connected to horn speaker. The objective was to showcase horn sound amplification using various horn shapes. Don't anticipate exceptional audio quality but it's suitable for enhancing bathroom activities' comfort. The MP3 decoder can play music from a microSD card or directly from a flash disk. Available at an affordable price on eBay: "TF Card U Disk MP3 Format Decoder Board Audio Decoding Module W/ Amplifier" http://www.ebay.com/sch/i.html?_odkw=TF+Card+U+Disk+MP3+Format+Decoder+Board+Audio+Decoding+Module+W%2F+Amplifier&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.TRS0&_nkw=TF+Card+U+Disk+MP3+Format+Decoder+Board+Audio+Decoding+Module+W%2F+Amplifier&_sacat=0 The loudspeaker used was: "1.5" inch 4Ohm 4Ω 3W Full Range Audio Speaker Stereo Woofer Loudspeaker" http://www.ebay.com/itm/331269348255?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
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