Technics EAH-AZ40 True Wireless In-Ear Headphones (Rose Gold) - Manual (Page 18)

Preparation
18
When charging with the earphones stored in the charging cradle (USB charging cord not connected)
Charging cradle
Charging status
LED Lid
Cyan *2, 3
Open
Charging the earphones
Green *3
There is plenty of charge in the charging cradle.
The charge in the charging cradle is running low.
Yellow *3
Red *3
*2 Blinking
*3 The charging cradle LED lights or blinks for about 4 seconds when you
open the charging cradle lid, and then goes out.


a : Lid
b : LED