This is a version of Nate Granzow's Music-Boosting Mobile-Electronics Amplifier modified to fit an iPhone 7 with Incipio protective case. Enter my giveaway to stand a chance of winning one of these mechanical speakers.

Giveaway entry form
http://trevorsworkshop.com/?p=1150

Support Trevor's Workshop by shopping on Amazon
http://amzn.to/2dSfa8e

Check out http://trevorsworkshop.com/ for more information.

Music
Brazil Samba - http://www.bensound.com