Item Name: Wireless Microphone Material: ABS Style: for iPhone Microphone: Digital Silicone Microphone Input Voltage: 5V Battery Capacity: Built-in 60mAh Rechargeable Battery (Included) Battery Life: 5-6 Hours SNR: 64DBM Adaptive Noise Reduction Transmission Delay: 30MS Sensitivity: -42dB Frequency Response Range: 20-20KHz Transmission Distance: 20-30 Meters(Barrier-Free) Features: Noise Reduction, Plug and Play, Clear Sound Size Details: […]