Audio-Technica ATH-CKS990BT Manuel De L'utilisateur page 9

Indicator lamp display
The indicator lamp of the product indicates the product's status as explained below.
Status
Pairing Searching for device
Waiting to be connected
Connection
Connecting
Battery level Battery level low
Charging
Charge
Fully-charged
Indicator lamp display pattern Red Blue
Flashing
Lit
Lit
E
N
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