Button MIC Lavalier Microphone 2 in 1 Wireless Lavalier Mic Smartphone/Laptop/Tablet

Label:Yes Style:Lavalier Microphone Frequency response range: 20Hz-20KHz Working time:2-3h Battery capacity: 40-50mAh Transmission distance:10-20m Signal to noise ratio: ≥ 60dB Mic Size:about 2.6cm(1.02in) Material: Plastic Packing:1pc Receiver,1pc/2pc mini mic Receiver Size:about 4.7cm(1.85in)

Usage tips: The noise reduction mode will make the voice brighter (suitable for people who speak softly) When two people are using it, do not keep the collar clips too close (the best effect is when it exceeds 3 meters) When the winter is extremely cold, the battery life will be shortened