Yamaha TW-E3C True Wireless Earbuds (Red) - Manual (Page 16)

Turning on the power
Once you remove the earbuds from the charging case, the earbuds will turn on.
1
Remove the earbuds from the charging case.
The indicators light up as shown below, and the power turns on.
Lights up for 1 sec Lights up for 1 sec
NOTE
( When an earbud is low on battery power, its indicator flashes three times when you turn the earbud on. If this happens, charge the
earbud.
( When the remaining battery power of the charging case is depleted, the earbuds will not turn on even when they are taken out of
the charging case. If this happens, charge the charging case and then try charging and removing the earbuds again.
Related links
“Remaining Battery Power” (p.18)
16
Charging and Powering > Turning on the power