The LED is always on, indicating that the converter is connected to a Bluetooth device (the LED is always on as long as one device is successfully connected) When Bluetooth is not connected (the LED is slow flashing), press to enter pairing state (the LED is flashing), after Bluetooth is successfully connected (the LED is always on), press to disconnect Bluetooth (when there are multiple devices connected, disconnect one at a time) Specifications Accessories Type:Adapter (The product printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: plastic Package Contents: 1 x Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.