Pi-Supply-Just Boom-Amp-Audio-HAT-DAC-Power-Amp-for-the-Raspberry-Pi-Pi-Supply-JBM-003-The-Just Boom-Raspberry-Pi-Amp-HAT-has-been-designed-to-be-simple-to-install-&-use-With-no-soldering-required-&-all-the-mounting-hardware-already-provided-this-product-is-suitable-for-absolute-beginners-&-seasoned-professionals-alike-br-br-Just-connect-the-HAT-to-a-set-of-passive-speakers-&-you-can-be-up-&-running-quickly-enjoying-flawless-high-quality-audio-playback-within-minutes-of