Product Name: Kalimba Tuner
A4 frequency: 440Hz
Battery: CR2032 button battery*1
Feature: 12 equal temperament auto-tune mode
All images and descriptions are for illustrative purposes only. Product specification, functions and appearance may vary by actual usage. The color deviation is subject to actual system configuration and slight dimension difference is allowed due to manual measurement. We recommend you could check with sales for exact offers if need.