DUDAO M1-B 2 IN 1 LAVALIER MICROPHONE -BLK

Transmission delay:<25ms
Working frequency:2.4g wireless link
Charging interface: type-c charging port
Body weight: 25g
Sensitivity:-38DB
Specified type: omnidirectional microphone
Signal-to-noise ratio: 64DBM
Transmission frequency band:2400mhz-2483mhz
Wireless transmission:2.4G adaptive FM
Charging time: about 1.5 hours
Usage time:3-6 hours
Battery capacity:microphone 45mah
Working current:<12ma
Shutdown current:<20ua
With LNGTHING adapter.

inner box: 30pcs
carton: 270pcs
575*590*478