Product Description This switch gives you 5 hum cancelling tones ROTARY POSITIONS Position 10: Treble pickup Position 9: Outside coils- deep and clear - parallel Position 8: Series single coils – Warm version of the "in between the treble and middle pickups" Position 7: Parallel single coils – Crisp version of the "in between the treble and middle pickups" Position 6: Bass pickup