Korg, Tuner (GA50)

Long thought to be the standard in handheld tuners, the ga-50 offers simple and intuitive operation and a satisfying tuning experience for all guitarists and bassists. The LCD screen of the ga-50 has been enlarged to strengthen visibility, making it even easier to quickly and appropriately check your tuning. With two distinct modes for guitar and bass, The ga-50 can easily detect standard and dropped tuning, in addition to extended range instruments like 7-string guitars and 5-string basses. Tune by the usage of high sensitivity built-in microphone, or by plugging directly into the ga-50. The ga-50 also features a drastically improved battery life, taking into account 135 hours of use. Additional functions like memory backup and auto power-off make the CA-50 the most reliable and fully-featured compact guitar/bass tuner in the marketplace.

An even more readable display, with a larger note name indication
Guitar and bass modes provided, with strengthen for 7-string guitars and 5 or 6-string basses
Sound out mode assists when you replace strings; output jack allows you to tune even all the way through a performance
Dramatic increase in battery life; stylish Body design with excellent functionality
Memory backup function and auto power-off function provided