PUI Audio AOW-4544P-C3310-B-R Depth: 4.5 mm Diameter: 9.7 mm Dimensions: 9.7 mm L x 9.7 mm W x 4.5 mm D Directional Properties: Omnidirectional Impedance: 2.2 K Ohms Lead Free Status / Rohs Status: Lead free / RoHS Compliant Length: 9.7 mm Operating Voltage: 2 Vp-p Sensitivity: -44 ???± 3dB Termination Style: Pin Width: 9.7 mm Product Category: Microphones RoHS: yes