The pair of white Yamaha NS-AW150W 2-Way Outdoor Speakers can be installed in a variety of settings, whether on a wall, ceiling, corner, or under eaves, and can act as front or surround channels in your indoor or outdoor entertainment setup. The 5" high compliance polypropylene mica-filled woofer and 1" glass-filled PEI dome tweeter in each speaker have a wide frequency response of 55 Hz to 40 kHz. The speakers can be installed vertically or horizontally, and 5-way binding post connectors allow for easy connection to your amplifier.