DescriptionThis Crown PZM30D Boundary Microphone is a Pressure Zone Microphone designed for pro recording, sound reinforcement, and broadcasting. It has many applications, miking anything from full orchestras to individual instruments. Dual frequency response is switchable between rising (R) and flat (F). The R setting delivers the crisp attack needed for piano and percussion while the F setting offers smooth, flat, high-frequency response. With a frequency response of 20Hz to 20kHz and a maximum SPL of 150dB it can handle just about any sound capture chore you throw at it.Main FeaturesSpecificationsShipping DetailsYour item(s) will be shipped by USPS or UPS according to your location and package dimensions. All items are shipped from our warehouses strategically located throughout the US to ensure fast delivery. Orders will be shipped within 24 hours after your payment has been processed unless stated otherwise.30 DAY REFUND POLICYAll products are sold with a 30 day refund policy. The item(s) must be returned by the buyer in as new condition with all accessories included. The packaging of the item(s) and accessories must be completely intact, in good condition.ABOUT USAt Alpha-Market we focus on customer experience. We want our customers to receive exactly what they order when they need it. And in the rare case that there are any issues, we respond quickly to resolve them.