Enhanced Audio Quality: the for Ulanzi A100 Wireless Lavalier Microphone ensures crisp, clear audio capture, making it ideal for professional and amateur use. Real-time Monitoring: Monitor your audio as it records with real-time feedback directly to your device. Perfect for ensuring every recording session delivers the desired audio quality. Versatile Compatibility: Whether you're recording a podcast, interviewing, or capturing live events, the for Ulanzi A100's compatibility with various devices makes it a versatile choice for all your audio needs. Sound delay:30ms Signal to noise ratio:greater than equal 58dB MIC sensitivity:-38+2dB MIC directionality:Omnidirectional MIC sound pressure level:greater than equal 115 dB SPL input current:5V/1A Battery transmitter:3.7V/70mAh/0.259Wh Receiver:3.7V/70mAh/0.259Wh Charging compartment:3.7V/800mAh/2.96Wh Duration of use: Transmitter:Approximately 5 hours Receiver:Approximately 4 hours Charging compartment:Charge two transmitters at the same time Greater than 2 times Charging duration: Transmitter:Approximately 1.5 hours Receiver:Approximately 1.5 hours Charging compartment:approximately 1.5 hours Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Colour:Black Material:ABS Package Contents: 1 * Wireless Lavalier Microphone kit