Theater Solutions OVCDW Outdoor Volume Controls White Weatherproof Dial 2 Control Set Theater Solutions OVCDW impedance matching dial white outdoor volume controls, use up to 8 pairs of speakers, 150 watts RMS per channel, use up to 14 gauge wire Use with 4ohm, 8ohm, and 16ohm speakers, impedance matching, use any amp with the independent grounds, unit dimensions are 2.75" x 4.5" x 2.75" PVC weatherproof housings, 1" diameter mount, full instructions included Use for in wall or in ceiling home entertainment, home theater, multiple room system, industrial sound system, marine audio, pools, spas, yards, decks This listing and price is for 2 volume controls and full instructions