Charging case wireless lavalier microphone 1-to-2 live broadcast 2.4G noise cancelling microphone

Bluetooth version 5.3

Input voltage: 5V

Battery capacity: 55mAh (polymer lithium battery)

Battery life: 5 hours

Signal to noise ratio: 64DMB adaptive noise reduction

Transmission delay: 20 meters

Sensitivity: -42DB

Frequency response range: 20-20KHz

Product Material: ABS