Make sure the unit is fully charged and the Auxiliary jack is not plugged in.
Hold the small power button located underneath the Up and Down Volume buttons
The LED Light will turn Blue and that indicates that is On
To pair it with a Bluetooth Device, hold the power button down for 10-15 seconds or until the LED lights flash Red and Blue
If the Mobile device is asking for a pass code type 0-0-0-0
It the Headphones will beep to indicate that it is paired correctly.
If you cannot hear anything make sure the volume on the headphones and the Mobile device are high before and after pairing