Settings
Dual audio
You can play audio from your device to two connected Bluetooth audio devices.
1.Connect Bluetooth audio devices to your device.
2.From the Notification panel, tap Media output.
3.Under Audio output, tap 
next to each audio device to play audio to them (up to two devices).
NFC and payment
Near Field Communication (NFC) allows you to communicate with another device without connecting to a network. This technology is used by Android Beam and certain payment apps. The device that you are transferring to needs to support NFC, and it needs to be within four centimeters of your device.
◌From Settings, tap 
Connections > NFC and contactless payments, and then tap C> to turn on this feature.
Tap and pay
Use an NFC payment app to make payments by touching your device to a compatible credit card reader.
1.From Settings, tap 
Connections > NFC and contactless payments, and then
tap 
to turn on NFC.
2.Tap Contactless payments to see the default payment app.
•To use another payment app, tap an available app to choose it.
•To use a payment app that is open, tap Pay with currently open app.
•To set another payment service as the default, tap Others, and then tap the service you prefer.
Ultra-wideband
Identify the precise location of nearby devices. Options may vary by service provider.
◌From Settings, tap 
Connections >
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