DJI Mic (2 TX + 1 RX + Charging Case), Wireless Lavalier Microphone, 250m (820 ft.) Range, 15-Hour Battery, Noise Cancellation Wireless Microphone for PC, iPhone, Record Interview, YouTube, Black. 15-Hour Battery - Enjoy 5.5 hours of battery life from the transmitters, 5 hours from the receiver, and up to 15 hours with the charging case.
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