I review and upgrade the DeWalt 20V lithium powered stereo speaker. It's got bluetooth and a laser beam blue indicator LED. We'll have a look at the build quality and the electronic components, do some repairs and upgrades. Then we experiment a little to see if the MP3 decoder on the Bluetooth chipset is enabled. Amp Hour Podcast about amplifiers and audio gear: http://theamphour.com/270-an-interview-with-dafydd-roche/
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