New-and-Improved Hammer Jammer 2015 Available Now; Watch a Demo Video By Damian Fanelli published 10 December 15
Hammer Jammer Key-Hammering Device for Guitars Available for Preorder — Video By Damian Fanelli published 29 October 14
Video: Hammer Jammer Is a New Percussive Device for Electric and Acoustic Guitars By Damian Fanelli published 30 April 14