Porodo Lavalier Double Microphone with Charging Case

Charging Case 

-Charging Time: 2 Times (Up to 8H) 

-Battery Capacity: 300mAh 

-Recharge Time: 2H

Microphones

-Frequency Response: 20HZ - 20KHZ 

-Battery Capacity: 60mAh

-Recharge Time: 1H 

-Frequency: 2.4GHz 

-Working Time: 4H

-Sensitivity: -30dB  

-Latency: 20ms 

-SNR: -60dB

Receiver

-Frequency Response: 20HZ - 20KHZ

-Frequency: 2.4GHz 

-Latency: 20ms