So I've been hunting for a solution like this for a while. The closest thing I've come to is putting Bluetooth speakers in backpacks which are either muffled and really quiet, or extremely heavy and cumbersome. I finally found the backtrakz and honestly thought there was no way they were still in production because there is nothing even close on the market. The website showed how they built it and I was impressed. I even emailed them a few questions and the guys responded almost instantly. I ordered right away with a three-week wait period. I got it much sooner and it worked perfectly. Quality of sound is amazing for the size and weight of this thing. It's a little unbelievable. Overall experience: customer service + product = 10
not sure if you guys wanted me to add this but i actually use the backtrakz while snowboarding. I added sternum and waist straps for about $10 off amazon and got a dry cleaning/tailoring place to sew them on for $16. Another $10 on amazon for a rubberized bottom that i glued/screwed into the base and then sprayed the entire backpack with camp dry to repel moisture.
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