VOIIS Stereo Manual Del Usuario página 6

When the pairing procedure completed, Voiis Stereo's Bluetooth indicator
Step 6.
light will be slowly changed to indicate the successful connection.
Step 7. If it failed to complete the connection, the pairing mode will be exited
automatically, which will take about 60 seconds. When the pairing mode ends,
please repeat Step 4 to 6 to try again.
Using Voiis Stereo
E-4