The Marlin unit attaches to the straps of your goggles. To secure the unit, slide your goggle straps in the slits on each side of the unit.
If your google straps do not fit in the slit, you may try stretching the straps to make it fit in the slits.
After the Marlin unit is secured, you may wear your goggles as normal. Afterwards, attach the bone conduction unit. Clip the bone conduction unit to the side of your goggle straps as shown below.
Make sure the bone conduction unit makes contact with the side of your ear as shown. When complete, insert the 3.5mm side of the bone conduction unit to the Marlin unit. Please note there is notch in the unit to ensure the connection is in the correct orientation.