Yamaha TW-E3C True Wireless Earbuds (Red) - Manual (Page 8)

Accessory and part names
Make sure that all of the accessories are included with this product.
Earbuds
b
a
a Touch Control
b Indicator
Charging case
c
d
Back Front
c Charging indicators
d Charging connector
USB power cable (30 cm (11-3/4 in); type A to C)
8
Introduction > Accessory and part names