DJI Mic Mini (2TX+1RX+Charging Case) Specifications

Wireless Technology Digital 2.4 GHz
Included Transmitters 2x Clip-On with Microphone
Diversity Non-Diversity
Max Operating Range 400 m
Receiver Type Camera-Mount
Microphone Type Built-In (Transmitter)
Polar Pattern Omnidirectional

System
Max Transmitters per Band 2
Built-In Recorder No
Timecode Support No
Mobile App Compatible Yes: Android & iOS
Bluetooth 5.3
Modulation GFSK

Receiver
Receiver Type Camera-Mount
Mounting Options Belt Clip (with Included Hardware)
Number of Audio Channels 2
Built-In Microphone No
Audio I/O 3.5 mm TRS Unbalanced Output
Frequency Response 20 Hz to 20 kHz
Network I/O No
USB/Lightning Connectivity USB-C Female (Audio, Charging)
USB Class-Compliant Yes
Power Requirements 

Battery
Battery Type 1x Built-In Rechargeable
Internal Battery Capacity 170 mAh
Battery Charging Time 100 Minutes
Receiver Battery Life 10.5 Hours (Lithium Rechargeable)
DC Input Power 5 VDC
Display & Indicators LED
Operating Temperature -10 to 45°C
Dimensions 46.5 x 29.6 x 19.3 mm
Weight 17.8 g

Transmitter
Transmitter Type Clip-On with Microphone
RF Output Power Not Specified by Manufacturer
Built-In Microphone Yes
Audio I/O 3.5 mm TRS Female Input
Pad No
Auto-Level/Gain Yes
Frequency Response 20 Hz to 20 kHz
Sync Method 2.4 GHz QPSK
Power Requirements 

Battery
Battery Type 1x Built-In Rechargeable(Replaceable)
Internal Battery Capacity 114 mAh
Battery Charging Time 90 Minutes
Transmitter Battery Life 11.5 Hours (Lithium Rechargeable)
Display & Indicators LED
Operating Temperature  -10 to 45°C
Dimensions 26.6 x 26.1 x 15.9 mm
Weight 10 g

Microphone
Microphone Type Built-In (Transmitter)
Color Black
Sound Field Mono
Polar Pattern Omnidirectional
Maximum SPL 120 dB SPL
Charging Case
Additional Runtime with Charging Case 48 Hours
Recharge Time 2 Hours
Battery Chemistry Lithium-Ion
Capacity 1950 mAh
Charging Interface USB-C
DC Input Power 5 VDC at 2 A
Dimensions 96.1 x 59.4 x 41 mm
Weight 139 g

In the Box
DJI Mic Mini 2-Person Compact Wireless Microphone System for Camera & Smartphone (2.4 GHz)
2 x DJI Mic Mini Clip-On Transmitter with Built-In Microphone (2.4 GHz, Infinity Black)

Receiver
Mobile Phone Adapter (USB-C)
3.5mm TRS Camera Audio Cable
2 x Windscreen (Black & Gray)
2 x Windscreen (Black)
2 x Magnet Clip
USB-C Charging Cable
DJI Charging Case for Mic Mini