Power-on pair without timeout and anti-misdelete: Automatically enters pair state upon power-on, the pair indicator keeps flashing and remains in the pair state. If it was previously connected and accidentally long-pressed to reset, it cannot automatically reconnect;
Power-on pair with 3-minute timeout and anti-misdelete: Automatically enters pair state upon power-on, the indicator flashes, and if no pair is done within 3 minutes, it automatically exits the pair state. If it was previously connected and accidentally long-pressed to reset, and no pair is done within 3 minutes, it automatically reconnects;
Long-press pair with 3-minute timeout and anti-misdelete: Requires long-pressing the button to enter the pair state upon power-on, the indicator flashes, and if no pair is done within 3 minutes, it automatically exits the pair state. If it was previously connected and accidentally long-pressed to reset, and no pair is done within 3 minutes, it automatically reconnects.