Audio-Technica ATH-CKS50TW Noise-Canceling True Wireless In-Ear Headphones (Black) - Manual (Page 21)

Connecting via Bluetooth
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3
Touch the pairing notification that appears on your Android device.
The voice guidance will play the message “Bluetooth connected” when pairing is complete.
About pairing
When connecting a new Bluetooth device, you need to pair it with the product. Once the Bluetooth device and the
product are paired, you do not need to pair them again. The product supports multipairing, in which a connection history
is saved. However, in the following cases you will need to pair again even if the Bluetooth device was paired once:
If the product is deleted from the Bluetooth device’s connection history.
If the product is sent out for repair.
If the product is reset.
Multipoint function
The product supports multipoint, which allows two Bluetooth devices to be connected at the same time. While you are
listening to music with one device, you can answer a call that comes in from the other device. It is convenient if you have
two smartphones, for example.
Audio-Technica does not guarantee the operation of all combinations of Bluetooth devices.
Connecting using multipoint
1
Pair with the first Bluetooth device.
2
After pairing with the first device, turn off its Bluetooth feature.
3
Pair with the second Bluetooth device.
4
Turn on the Bluetooth feature of the first Bluetooth device.
If the product does not connect, restart its power.
Up to two Bluetooth devices can be connected at the same time with multipoint. To connect a third
Bluetooth device, disconnect one of the connected devices.