What's in the box:

Kalimba Tuner Auto-tuning 12 Equal Temperament LCD Display for Thumb Piano Tuning (Standard)

Features:
The kalimba tuner features auto-tuning, designed for automatically tuning for thumb piano.
The tuning range is from A1(55Hz) to C8(4186Hz), and A4 frequency is 440Hz.
Built-in 3 backlight colors(red, yellow and green) to indicate the condition of tone.
LCD screen display for clear reading of the parameters.
Compact size, easy to carry and use in daily tuning.

Specifications:
Color: Black
Material: Plastic
Tuning: 12 equal temperament
A4 Frequency: 440Hz
Tuning Range: A1(55Hz)-C8(4186Hz)
Package Size: 7 * 3.3 * 2.3cm / 2.76 * 1.30 * 0.91in
Package Weight: 22g / 0.78oz

Packing List:
1 * Kalimba Tuner
1 * Sticky Glue