The latest edition of the Roadie automatic tuner is twice as fast as the Roadie 2.
The small handheld device can tune almost any stringed instrument with geared pegs in a couple of seconds, and can quickly wind new strings to the proper tension before tuning. It also supports alternative tunings, and doubles as a vibrating metronome.
You can pre-order the Roadie 3 automatic instrument tuner HERE on Indiegogo starting at $109.