How to use the Jamstik strap November 02, 2018 03:38 Updated Follow Related articles How to attach the Jamstik Strap and the Add-on Body to your Jamstik 7. What happens if a string breaks on my Jamstik? How to attach & remove the Add-On Body for the Jamstik+ and Jamstik 7 Can I charge the Jamstik battery? Can I use the Jamstik with a device that does not have Bluetooth? Comments 0 comments Please sign in to leave a comment.