Ulanzi A100 Wireless Lavalier Microphone

DescriptionUlanzi A100 Wireless Lavalier MicrophoneBrand and ModelBrand: UlanziModel: A100Device Dimensions and WeightOverall Dimensions: 112x62x30mm / 4.4×2.4×1.2 inchesOverall Weight: 148g / 0.33lbTransmitterDimensions: 43x18x18mm / 1.7×0.7×0.7 inchesWeight: 8.8g / 0.021lbBattery: 3.7V / 70mAh / 0.259WhBattery Life: Approx. 5 hoursCharging Time: Approx. 1.5 hoursReceiverDimensions: 48x25x13mm / 1.9x1x0.5 inchesWeight: 9.6g / 0.021lbBattery: 3.7V / 70mAh / 0.259WhBattery Life: Approx. 24 hoursCharging Time: Approx. 1.5 hoursCharging CaseBattery Capacity: 3.7V / 800mAh / 2.96WhBattery Life: Charging both transmitters simultaneously over twiceCharging Time: Approx. 1.5 hoursAudio SpecificationsSampling Rate: 32kHz 16bitFrequency Response: 20Hz-20kHzAudio Channel: MonoMIC Sensitivity: -38±2dBMIC Polar Pattern: Omni-directionalMIC Sound Pressure Level: ≥115 dBSPLTransmission DetailsWireless Transmission Distance: ≥20mData Transmission: Bluetooth 5.3+EDRNoise Reduction: SupportedDelay: 30ms