Shaun walks you through how to apply Fret Zealot onto both acoustic and electric guitars. Timestamps below:
0:26 - De-string Your Guitar
1:46 - Attach Fret Zealot
4:22 - Bluetooth Sync to App
4:48 - Restring Your Guitar
5:08 - Tune Your Guitar
Buy here: http://www.fretzealot.com/
