There are those who can quickly tune a guitar by ear, and then there are those who can’t. Fortunately for the latter group, there’s a product like the Roadie Tuner to help. It’s a small handheld device that pairs with your smartphone and automatically tunes your strings. Just place it on each peg, pluck the string in front of your phone, and it’ll do the required adjustments. You can even choose from alternate tunings, or even create your own. Also, it’ll analyze the tonal quality of your strings and alert you when it detects it might be time to change them. As a matter of fact, Roadie Tuner isn’t limited to traditional guitars; it’ll tune any stringed instrument, with any number of strings. Currently on Kickstarter, a $79 pledge will get you yours, with a delivery date of June 2014.