■**Size**: Length: approx. 50mm, width: approx. 14mm, thickness: approx. 1.7mm
■Can change the ear clip type
It is normal for the copper part to be electroless if it is oxidized. Use copper oil to wipe it with a cotton swab or wipe with a soft cloth.
It is recommended that proper cleaning should be done when not worn and placed in a zipper bag to reduce oxidation.
■ zipper bag....x1
■ Wipe silver cloth....x1