DJI Mic 3 Transmitter

Key features
For Mic 3 Wireless System
Transmitter with Onboard Recording
Built-In Omnidirectional Microphone
Dual-Band Wireless and Bluetooth 5.4
400 m Transmission Distance
32-Bit Float Recording
Embedded Timecode Support
8-Hour Battery Life
Overview
Small, Lightweight, Versatile
The DJI Mic 3 Transmitter is compact, lightweight, and discreet. It supports both magnetic and clip-on attachment methods. The detachable, rotatable clip allows you to flexibly adjust the microphone angle, whether clipped sideways or inverted, ensuring optimal audio capture in any scenario.
4TX + 8RX Capability & Four-Channel Output
Use up to four transmitters and eight receivers at once for effortless multi-person and multi-camera setups. With select cameras or software, you can record four separate audio tracks, making post-production easier.
Adaptive Gain Control for Balanced Volume
Automatic mode prevents audio clipping in dynamic outdoor scenes like sports events. Dynamic mode adjusts gain for consistent loudness, ideal for quiet indoor environments such as studios.
Three Voice Tone Presets, Two-Level Noise Cancelling
Choose from three voice tone presets: Regular delivers natural and balanced sound for daily recording, Rich for fuller lows, and Bright for extra clarity in streaming or teaching. Two noise cancelling levels reduce background noise. Low for quiet indoor spaces, while High ensures your voice stays clear in noisy environments.
Regular/Bright/RIch
Dual Band Anti-Interference, Lossless Audio Transmission
Automatically hops between 2.4 GHz and 5 GHz bands for strong anti-interference and 400m stable audio transmission. Enjoy 48kHz/24-bit lossless audio for high-fidelity sound, even in complex environments
Dual-File 32-bit Float Internal Recording
Saves both the original track and an algorithm-enhanced version to prevent data loss. A high dynamic range captures every detail, from whispers to loud sounds, providing more flexibility in post-production.
Extended Operating Time & Fast Charging
Transmitter lasts 8 hours, receiver 10 hours, and the charging case provides up to 28 hours total. A 5-minute charge gives 2 hours of use, so you're always ready to create. Multiple power-saving features and support for recording while charging keep you powered all day.
Integrated Timecode for Seamless Editing
High-precision timecode ensures precise sync with less than one frame of drift in 24 hours, making multi-camera editing fast and easy.
Specs​​​​​​​
DJI Mic 3 Transmitter
Model: DMT03
Dimensions: 28.77×28.34×16.35 mm (L×W×H) (with magnet)
Weight: 16 g (with magnet)
Wireless Mode: Wi-Fi: 802.11 a/b/g/n/ac/ax, SDR: Customizable
Equivalent Isotropic Radiated Power (EIRP) 
Wi-Fi:
2.400-2.4835 GHz: < 20 dBm (FCC/CE/SRRC/MIC)
5.725-5.850 GHz: < 20 dBm (FCC/SRRC), < 14 dBm (CE)
SDR:
2.400-2.4835 GHz: < 20 dBm (FCC/CE/SRRC/MIC)
5.150-5.250 GHz: < 20 dBm (FCC/CE/SRRC/MIC)
5.250-5.350 GHz: < 20 dBm (FCC/CE/SRRC/MIC)
5.470-5.725 GHz: < 20 dBm (FCC/CE/MIC)
5.725-5.850 GHz: < 20 dBm (FCC/SRRC), < 14 dBm (CE)
Operating frequency allowed varies among countries and regions. Refer to local laws and regulations for more information.
Wireless Mode Operating Frequency
Wi-Fi: 2.400-2.4835 GHz, 5.725-5.850 GHz
SDR: 2.400-2.4835 GHz, 5.150-5.250 GHz, 5.250-5.350 GHz, 5.470-5.725 GHz, 5.725-5.850 GHz
Operating frequency allowed varies among countries and regions. Refer to local laws and regulations for more information.
Bluetooth Protocol: Bluetooth 5.4
Bluetooth Operating Frequency: 2.400-2.4835 GHz
Bluetooth Transmitter Power (EIRP) BLE: < 10 dBm, BR/EDR: < 20 dBm
Operating frequency allowed varies among countries and regions. Refer to local laws and regulations for more information.
Battery Type: Li-ion
Battery Capacity: 137 mAh
Battery Energy: 0.531 Wh
Battery Voltage: 3.87 V
Charging Specification: Max 5 V
Charging Temperature: 5° to 45° C
Operating Temperature: -10° to 45° C
Charging Time: Approx. 50 minutes
Operating Time: 8 hours
Measured using DJI Mic 3 (2 TX + 1 RX + Charging Case), with features such as noise cancellation and internal recording off, during close range audio recording under interference-free conditions, with both transmitters connected to the receiver and the receiver connected to a camera via the 3.5mm audio cable.
Internal Recording Available Duration
24-bit (single file): 57.3 hours
24-bit (dual file): 28.6 hours
32-bit float (single file): 43.0 hours
32-bit float (dual file): 21.5 hours
Polar Pattern: Omnidirectional
Frequency Response    
Low Cut Off: 20 Hz-20 kHz (encoded)
Low Cut Off: 20 Hz-24 kHz (lossless)
Low Cut On: 100 Hz-20 kHz (encoded)
Low Cut On: 100 Hz-20 kHz (lossless)
Microphone Sensitivity    
Microphone Capsule: -36±1 dBV@1 kHz, 94 dB SPL
Signal-to-Noise Ratio (SNR): 72 dB
Maximum Sound Pressure Level (SPL): 126 dB SPL@1% THD, 130 dB SPL@10% THD
Sampling Frequency: 48 kHz
Bit Depth: 32-bit float/24-bit (switchable)
Max Input Level (3.5 mm) - n/a
Equivalent Noise: 22 dBA
Monitor Interface Output Power: Max Output Power: 20 mW@1 kHz, 32 Ω
Max Transmission Distance: 400 m
Measured using DJI Mic 3 (2 TX + 1 RX + Charging Case), with Lossless Audio off, in an open, unobstructed environment free of interference 80 m.
Measured using DJI Mic 3 (2 TX + 1 RX + Charging Case) in a laboratory-simulated high-interference environment, with no packet loss and clear, high-fidelity audio.
Supported Frame Rate: 23.98F, 24F, 25F, 29.97F, 29.97DF, 30F, 50F, 60F
Offset: 0.5 ppm, deviation less than 1 frame within 24 hours*
* Measured using DJI Mic 3 (2 TX + 1 RX + Charging Case) in an environment free of electromagnetic interference, with continuous power supplied to the transmitters and receiver following timecode synchronization and throughout 24 hours of continuous recording.
Input: LTC
Input Port: 3.5mm TRS
Input Voltage: Not greater than +6 dBu
Output: LTC, Audio-TC
Output Port: 3.5mm TRS, USB-C
Output Voltage: 0.5 Vp-p