Purchase this amp here:
and the bluetooth receiver (makes any headphones or speakers bluetooth compatible):
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This is the review and demo of the Donner 3 watt mini guitar amp. This thing was a lot better than I expected. It features a rechargeable battery with fast charge times and long life, an aux input for jamming along with music, headphone output so that no one can hear you sucking, and a 1.6″ speaker. Works for both guitar and bass (headphones recommended for bass).