Provide a demonstration of a wireless microphone, charging case microphone, portable audio video recorder, and live gaming microphone for iPhone and Android. Composition: ABS plastic Black in color Type of silicon microphone: digital 5VM is the input voltage. 60 mAh is the iPhone's battery. Battery for charging case: 600 mAh Hours of work: 6–8 Ratio of signal to noise: 64 dBm 30 ms is the transmission delay. Sensitivity: 42 dBF +/- Range of frequency response: 20–20,000 Hz Distance of transmission: 20