ULANZI A100 Wireless Lavalier Microphone Lapel Mic for Camera and Phone

Description Brand and Model Brand: Ulanzi Model: A100 Device Dimensions and Weight Overall Dimensions: 112x62x30mm / 4.4×2.4×1.2 inches Overall Weight: 148g / 0.33lb Transmitter Dimensions: 43x18x18mm / 1.7×0.7×0.7 inches Weight: 8.8g / 0.021lb Battery: 3.7V / 70mAh / 0.259Wh Battery Life: Approx. 5 hours Charging Time: Approx. 1.5 hours Receiver Dimensions: 48x25x13mm / 1.9x1x0.5 inches Weight: 9.6g / 0.021lb Battery: 3.7V / 70mAh / 0.259Wh Battery Life: Approx. 24 hours Charging Time: Approx. 1.5 hours Charging Case Battery Capacity: 3.7V / 800mAh / 2.96Wh Battery Life: Charging both transmitters simultaneously over twice Charging Time: Approx. 1.5 hours Audio Specifications Sampling Rate: 32kHz 16bit Frequency Response: 20Hz-20kHz Audio Channel: Mono MIC Sensitivity: -38±2dB MIC Polar Pattern: Omni-directional MIC Sound Pressure Level: ≥115 dBSPL Transmission Details Wireless Transmission Distance: ≥20m Data Transmission: Bluetooth 5.3 EDR Noise Reduction: Supported Delay: 30ms