Polsen OLM-20 Dual Omnidirectional Lavalier Microphone

Omnidirectional Polar PatternThe omnidirectional polar pattern provides excellent off-axis response, even if a subject turns their head while speakingWide Range of CompatibilityCompatible with DSLR cameras, camcorders, and most devices with a 1/8' (3.5mm) mic-level inputNo Extra Accessories NeededThe OLM-20's design sends each microphone to a discreet channel without need for extra adapter or mixerLow Sensitivity to Wind Noise and Vocal PlosivesEach microphone offers low sensitivity to wind, handling noise, and vocal plosives13.5' (4.1 m) CableThe 13.5' cable provides 10' of distance between each mic, 1' of distance between its battery box and stopper, and 2.5' of distance from the battery box to its 1/8' (3.5mm) connectorIn-Line Battery Pack and Power SwitchThe OLM-20 is powered by a 1.5 V button cell battery (included) and does not require external power for operation. The power switch conserves battery lifeTie Clip and Foam WindscreenThe included tie clips allow for hands-free operation while the windscreens help ensure quiet, professional-quality recordingsTransducer: Electret CondenserPolar Pattern: OmnidirectionalFrequency Response: 30 Hz to 18 kHzSensitivity: -65 dB ± 3 dB (0 dB=1 v/ubar @ 1 kHz)Impedance: 1000 Ω ± 30% @ 1 kHzOperating Voltage: 1.5 V DCConnector: 1/8' (3.5 mm) gold-plated stereo plugPower: 1.5 V button cell batteryLength: Microphone: 0.79' (20 mm), eachCapsule Diameter: 0.3' (7.5 mm), per capsuleCable: Total Length: 13.5' (4.1 m), Length Between Microphones: 10' (3 m), Length Between Battery Box and Stopper: 1' (0.3 m), Length From Battery Box to Connector: 2.5' (0.8 m)