Mooer Baby Tuner Guitar Tuner Pedal With Mute Function Micro Tuner Tuning Pedal Continuing our classic micro single block design this pedal is durable,small,neat and easy to carry High precision chromatic tuning,sounds good on most instruments and such things as 7 strings guitar and 5 strings bass Clear,smooth and fast tuning with bright LED lit display,ensures accurate tuning even under dazzling sunshine outdoors. A high precision tuning micro pedals, can be accurate to 1 points Works with most Electric or Electric-acoustic instruments including seven string guitar or five string bass