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Features:
Mini key ring style chromatic tuner.
Automatic tuner， modify tone accurately and fast.
Colorful LED backlight， red means flat， yellow means sharp， green means in tune.
Small and exquisite appearance， easy to clip on the instrument.
Energy-saving， automatically power off after no operation for 3 minutes.
Has memory storage function， the last operated function will be displayed when the machine is turned on again.

Specifications:
Color: Black
Pick up: Mic
Tuning mode: Automatic
Tuning item: Chromatic
Tuning range: A1(55Hz)~C8(4186Hz)
A4 frequency: 440Hz
Tuning error: ±1 cent
Power supply: 1 * CR2032 battery
Item size: approx. 5*2.8*1cm / 2*1.1*0.4in
Item weight: 14g / 0.5oz
Package size: 12.8*8.5*2cm / 5.1*3.4*0.8in
Package weight: 30g / 1.05oz

Package includes:
1 * Electronic Tuner
1 * User Manual