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/ MERCH ✪►https://www.etsy.com/ca/listing/464202928/one-rule-to-ruler-them-all-cheeky-jokes◄✪