Why doesn’t the helmet output sound when I play music on my phone?

Why doesn’t the helmet output sound when I play music on my phone?

1> Check if the the Bluetooth earphone of the Bling helmet is connected. The Bluetooth icon on your phone will change after it is connected. Enter "Settings-Bluetooth" through the mobile phone, and find Helmet Headset. If it is not found, close the Bling helmet, and long press the power-on key to power on and enter "Pair". When finding the Helmet Headset, tap it to pair it.

2> If music cannot be played after pairing, check the current audio output on your phone. Find the settings, and select the Bluetooth earphone for the Bling helmet. For iPhones, scroll on the screen display to switch to Helmet Headset. For Android phones, enter Bluetooth - Helmet Headset, and tap to enter it and set the audio output item.

3> The volume can be increased for clarity.