DJI Osmo Action 3/4 - 2in1 2.4G Wireless Microphone (vč. Aku)

25gSize: 48.5 x 32 x 14mmCharging Time: About 2.5 hoursWorking Time after Charging: About 10hoursPlug and PlayFrequency: 2.4GHzTransmission Range: 15-30 Meters