Features:
Mini tuner pedal designed for chromatic and guitar tuning.
With built-in rechargeable lithium battery? convenient usage.
Large LCD color display showing the tuning information.
True bypass footswitch for turning on/off the pedal.
Supports flat tuning under the guitar mode.
With embedded button for adjusting mode selection/ A4 frequency.

Specifications:
Brand: ammoon
Model: PT-22
Tuning Range: A0(27.5Hz)-A6(1760Hz)
Tuning Items: C(Chromatic)? G(Guitar)
Flat: b? bb (Only available in guitar mode)
A4 Frequency: 430-450Hz
Input: 1/4" Monaural Jack
Output: 1/4" Monaural Jack
Battery: 3.7V? 180mAh rechargeable lithium battery
Rechargeable Power Supply: DC 9V
Socket Entrance Diameter: 5.5mm
Item Size: 4 * 9.5 * 3.5cm / 1.6 * 3.7 * 1.4in
Item Weight: 151g / 5.3oz
Package Size: 10.5 * 6.2 * 5cm / 4.1 * 2.4 * 2in
Package Weight: 175g / 6.2oz

Note:
The power adapter is not included.
Use toothpick or other thin and hard object to press the embedded button. Short press to select tuning items; long press to adjust A4 frequency.

Package List:
1 * Tuner Pedal
1 * User Manual (English)