The DJI Mic Mini (2 TX + 1 RX) is $56 at Amazon right now - a record low.
The kit normally retails for $79. Amazon's Prime Day sale cuts that to $56, saving $23. The bundle includes two transmitters and one receiver. Each transmitter weighs 10 grams, has a range of up to 400 metres, and features two levels of noise cancellation plus automatic limiting to prevent clipping. DJI pitches it squarely at content creators who film on the move.
At $56, the Mic Mini enters territory where it competes hard against entry-level wired lav setups - and wins on convenience. The 400-metre range and noise cancellation make it more capable than its price suggests, which is probably why it has become a default recommendation in budget creator circles. A record-low price makes the entry point easier to justify.
The deal is live through Prime Day. Whether the stock lasts that long is a different question - DJI audio gear tends to move fast during sale events.