Features:

Multifunctional design, worked as Tuner & Metronome & Tone Generator, good helper for the novices and professionals.
Mini in size, convenient to carry along.
Dual pickup mode, Internal Microphone or Pickup cable.
With stand on the back to stand on the flat stably. Send out sound to indicate tempo. LCD display(5 * 3cm), provides excellent visibility. Has connector for connecting to earphone.(earphone is not included)
The machine will be off automatically when there is no button operation or signal inputting in 3 minutes.
It can be used for the tuning of chromatic, guitar, bass and violin.
Tuning Accuracy Indicator:
Low: The indicator points to the left;
High: The indicator points to the right; In tune: The indicator points to the middle.

Specifications:
Functions: Tuner & Metronome & Tone generator 3in1
Tuner: Tuning Mode: Auto Items of Tuning: Chromatic, Guitar, Bass and Violin
Tuning Range for Chromatic: A0(27.5Hz)-A6(1760Hz)
Tuning Range for Guitar: 1E-6E, LB
Tuning Range for Bass: HC, 1G-4E, LB
Tuning Range for Violin: 1E-4G A4
Frequency range: 435-450Hz Flat for Guitar and Bass: b, bb
Metronome: Tempo: 30-250/minute Beat Type: 0-9
Tone generator:
Tone Range: Chromatic(1A-7A),Guitar,Bass,Violin Tone
Frequency Range: 430-450Hz  
Powered By: 2 * AAA battery(not included)
Display Size: Approx. 5 * 3cm / 2 * 1.2in
Item Weight: 75g / 2.6oz
Package Size: 8.5 * 2 * 13.5cm / 3.3 * 0.8 * 5.3in
Package Weight: 115g / 4oz
Package List:
1 *  3in1 Metro-Tuner
1 * Pickup Cable
1 * User Manual(English)
Note: Batteries are not included.