Cherub Technology’s "Nux Metro Tuner" is a digital tuner, tone generator and metronome for the iPhone. Featuring a host of tuning styles, "Nux Metro Tuner" calls upon Cherub’s more than 14 year experience in tuner development to make it the most accurate tuner in the iPhone App market.

ACCESSORIES
Its too loud to use the iPhone’s mic? No Problem. Simply plug your instrument directly into the iPhone using the Cherub GB2i Guitar/Bass/ iPhone converter. Keep it inline with the THRU jack. You need a little personal time with your instrument? Plug your earphones into the mini earphone jack and start creating.
"Nux Metro Tuner" was developed by Cherub Technology Co., Ltd., Shenzhen, China.

FEATURES:
METRONOME
•Six time signatures: 2/4,3/4, 4/4, 5/4 and 6/8
•Downbeat indicator: On/ Off .
•Female voice count

TUNER
•Supports multiple instruments including Guitar, Bass, Violin, & Ukulele
•Chromatic, Guitar, Bass, Violin, Ukulele
•Guitar & Bass mode only: Flat tuning up to 4 semitones/Open G/Drop D
•Extended tuning range: A0 to C8
•A4 calibration from 430 Hz to 450 Hz

TONE GENERATOR
•Chromatic, Guitar, Bass, Violin, Ukulele
•Guitar & Bass mode only: Flat tuning up to 4 semitones/Open G/Drop D
•A4 calibration from 430 Hz to 450 Hz

REQUIREMENTS
Internal mic (iPhone, iPad), apple earphones with microphone or external interface device (GB2i Converter iPhone, iPad ,or iPod Touch), another iPhone-compatible instrument cable.