MB Pro1/Pro2 Pairing Instructions (pictured at bottom) :
1. Start with the Headset not connected to the charger and turned off.
2. Press and hold the multi Function (call control) button until the light begins to flash red/blue alternately.
3. Set the headset aside and either turn on the Bluetooth on your device you wish to pair the headset to or plug in the USB dongle.
4. Either scan for devices from your Bluetooth device (cell phone, tablet, etc.), or wait for the USB dongle to flash red/blue.
5) The headset will say “Pairing” and will pair once you select the headset on your bluetooth device and hit pair OR will pair automatically to a USB dongle flashing red/blue in pairing mode.