About this unit

This is DJI's first-generation DJI Mic wireless lavalier system: two clip-on transmitters and one receiver that pair automatically and transmit up to 250 m (FCC) line of sight. Each transmitter runs about 5.5 hours and the receiver about 5 hours, with the included charging case able to fully recharge all three devices roughly 1.8 times. The transmitters are omnidirectional with a 50 Hz–20 kHz response and 114 dB SPL headroom; on a used set, verify that all three units still hold charge and that the case's own battery is healthy.