Check the listing for details. Aroma AT-101 Tuner Clip On Guitar Tuner For All Instruments. Color: Black, Condition: New. Listed at 12.99 USD. Island Music Gear Aroma AT-101 Tuner Clip On Guitar Tuner For All Instruments MULTI MODES CLIP-ON TUNNING: Chromatic, Guitar, Bass, Ukulele, ViolinHIGH PRECISION: High sensitive vibration tuner responds fast, which ignores the background noise, is ideal for loud, chaotic environment. Pitch calibration from 430HZ to 450HZLARGE LCD DISPAY & EASY VIEW: in chromatic mode, the display shows the note name; In guitar, bass, violin and Ukulele mode, the display shows the string number and the note name.MINI DESIGN: Guitar tuner is mini design, small as a coin, you will easily take it anywhere in your guitar bag.ZERO RISK PURCHASING: Instant refund or replacement if any unsatisfied to our products, within 30 days. Product DescriptionTuning Procedure:1.Press the power button and hold 2 seconds to turn on (off) the tuner.2.Press the power button continuously to select tuning mode out of Chromatic, Guitar, Bass, Violin and Ukulele.3.Clip the tuner onto your instrument.4.Play a single note on your instrument, the note name (and string number) will appear in the display, the screen color will change, and the meter moves.Back light turns green ;and meter stands in the middle :note in tuneBack light stay white ;the meter points to left or right: flat or sharp noteFeatures :Quality environmental-friendly ABS applied, Scientific design with exquisite workmanship ensure no break in use.Very simple to operate ,only one button controls everything turn on /off and setting tuning modes according to your instruments.The tuner head turns 360 degrees for any reviewing angle for your easy reading;Auto off for no signal detected for 3 minutes to save energy.Specifications:Tuning range: A0(27.5Hz)~C8(4186Hz)Tuning scale: Chromatic, Guitar, Bass, Violin, Ukulele, Banjo, MandolinPrecision: ±3CentA4: 430Hz- 450HzColor: BlackPower Supply: 3VLCD dimention:0.79x0.9 inchDimensions: 1.1(W)x1.46(D)x1.89(H)inchWeight: 0.06 lbYOU WILL GET:1 x Tuner1 x user manual1 x coin battery CR2032