Switching The Device By One-Touch (Nfc) - Sony WH-1000XM4/S Help Manual

Help Guide
Wireless Noise Canceling Stereo Headset
WH-1000XM4

Switching the device by one-touch (NFC)

If you touch an NFC-compatible smartphone to the headset while the headset is connected to another Bluetooth
device, the connection switches to the smartphone (One-touch connection switching). However, the connection
cannot be switched when talking on a headset connected to a Bluetooth-compatible mobile phone.
When an NFC-compatible smartphone is connected to the headset, if the smartphone is touched by another NFC-
compatible Bluetooth headset or Bluetooth speaker, the smartphone is disconnected from the headset and
connected to the Bluetooth device.
Note
Unlock the smartphone screen in advance if it is locked.
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