Yamaha TW-E3C True Wireless Earbuds (Red) - Manual (Page 11)

Touch Control operations
Use the Touch Control to operate the earbuds.
Touch Control
When operating the Touch Control, lightly tap (touch with your finger) the center of the earbuds.
Operations recognized by the Touch Control
(
Single tap
(
Double tap
(
Triple-tap
(
Long-tap (long-press)
NOTICE
(
Do not use a hard or sharp object to tap the Touch Control. This may cause a malfunction or damage the product.
NOTE
( Store the earbuds in the charging case when carrying them around, so as not to accidentally operate the Touch Control.
( Use the flat part of your finger to operate the earbuds, not your fingernails.
(
Use only one finger to operate the Touch Control.
(
If another finger or part of your hand, a piece of hair, your clothes or other objects get in the way when you’re trying to tap, you
may not be able to correctly operate the earbuds. Note that you cannot operate the earbuds when wearing gloves.
( The Touch Control may not detect your finger if your skin is dry.
(
The earbuds may not be correctly operated if your finger is wet with water, sweat or other liquids, or if the Touch Control is dirty.
Wipe off any moisture or dirt before operating.
11
Introduction > Touch Control operations