Brand Name: JOYO Is Batteries Included: no Origin: Mainland China High-concerned chemical: none Plug Type: NONE Model Number: JMT-03 Type: Tuner Item name: JOYO JMT-03 Guitar Tuner Color: Black Material: Plastic Feature 1: TAP tempo metronome function Feature 2: Support MIC and CLIP tuning modes Feature 3: Tuning for Chromatic, Guitar, Bass, Violin and Ukulele Choice: yes semi_Choice: yes