POWER: This speaker has 150 watts of power with a built-in sound port for excellent bass. An option is to get the AP640 with a 70V switch transformer with 8 ohms for commercial installations. DESIGN: The OSD Audio 70V commercial pair patio speaker can be daisy-chained for long distance runs. Or switch to 8 Ohm and place anywhere in your backyard or home. MOUNT: The included, flexible mounting brackets allow for 180-degree rotation and 60-degree tilt, enabling you to mount either vertically or horizontally, giving flexibility for the best coverage. MODERN: A sleek modern fancy look comes from the powder-coated rust-resistant grille for the speaker to last whether it is used indoors or outdoors. This quality accessory blends into the decor. DURABLE: In order for the speaker to last outside, there is stainless steel hardware for long-lasting durability and great sound in unknown temperatures, inclement weather, and changing seasons.