To connect the vase stereo system to a Bluetooth device, you can follow the following steps:

1. Turn on the Bluetooth function of the vase stereo.

2. Turn on the Bluetooth function of the Bluetooth device to be connected.

3. Search for available Bluetooth devices in the Bluetooth settings of Bluetooth devices.

4. Find and select the vase stereo in the search results, and then enter the password.

5. Wait for the connection to be successful, and then start using it.