Qwiktune qt11 tuner. The QT11 from Qwik Tune has all the basic essentials you need in a portable guitar or bass tuner. The "electric pitchpipe" plays the note for you, or you can tune each individual string, while the display tells you which string you are tuning and whether you are flat or sharp. The built-in mic is highly sensitive, and the speedy metering will get you tuned quickly and easily. Batteries included.