The Roadie Bass Tuner for Bass and Guitars changes the way you tune even in a noisy environment. The Roadie Bass Tuner has a powerful motor that can turn even rusty pegs. Moreover, only 30 seconds it's all going to takes to perfect guitar tune. Therefore, the new tuner has twice the power of the Roadie 2. With the Bluetooth connectivity, you can tune in a single charge up to 150 string. No matter where you are, you can tune as a stand-alone position without any mobile phone. Besides the bass and acoustic guitars, the tuner work also with electric, classical, and steel guitars. To sum it up, whether the guitar has 7 or 12-strings, and even ukuleles, mandolins, and banjos.