If your Bluetooth adapter cannot be connected to your mobile phone, try the following: 1. Press and hold the Bluetooth button on the device for around 10-15 seconds and then release the button * The backlight of the Bluetooth button will be in solid blue for 2 seconds * All the pairing history of the Bluetooth adaptor is now cleared 2. On the Bluetooth settings of your mobile phone, forget all the paired devices 3. Pair and connect the Bluetooth adaptor and your mobile phone again If all of the above does not help, contact our consumer support for further assistance.