What you need
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Remove the ear pad from the earphone by gently pulling the cloth pad outwards from the slot holding the cloth.
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Work circularly until removed.
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Using a Phillips #1 screwdriver, remove the four fastening screws that hold the blue plastic speaker mount in place.
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Gently pull blue plastic from black housing by hand until separated.
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Circuit board will be free to be removed by hand. Use plastic pry tool to slide between casing and circuit board if needed.
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Gently removed and flip over circuit board to reveal battery pack attached to the underside. Careful not to pull out wires running through headband.
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Use metal pry tool to slide between battery and circuit board to break up adhesive. Ensure the battery wire connector plug has been removed on front side.
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