If we want to use Bluetooth devices, such as inEars, headphones or speakers with the OnePlus smartphone, we must first connect or pair the devices with each other.
Normally it is sufficient to confirm the upcoming pairing, otherwise a PIN is displayed which can be entered to complete the pairing.

Android 10 (OxygenOS 10.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Bluetooth & device connection
Step 3:  Tap on  Bluetooth
Step 4:  Tap on  Pair new device
Step 5:  Choose an  available device
Step 6:  Tap on  Pair
  1. Open the Settings
  2. Tap on Bluetooth & device connection
  3. Tap on Bluetooth
  4. Tap on Pair new device
  5. Choose an available device
  6. Tap on Pair

OnePlus Instructions
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