Owner`s manual

Wi Sure-Sound Lavalier Technical Specications
OmnidirectionalCapsuleLavalierSpecications
Frequency Response: 20Hz to 20kHz
Operating Current: Less than 500uA
Operating Voltage: 0.8V - 5V DC
Sensitivity: -32dB+/-4dB/Pascal
Maximum SPL: 140 dB SPL max
Output Impedance: 2KΩ±30%
Capsule Type: 3.1mm Capsule
Element: Back Electret Condenser
Polar Pattern: Omnidirectional
LAVALIER SPECIFICATIONS
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