CZI MP140 Digital Voice Broadcasting System

Public safety operations, search and rescue missions, and large-scale emergency broadcasts require the ability to project clear, authoritative audio to personnel and civilians across distances where standard speakers fail to carry the message. The MP140 Long-Range Acoustic Device for the DJI Matrice 300 delivers 140 dB of maximum sound pressure with effective projection range beyond 1000 metres, paired with a 1080p three-axis stabilised camera and multiple broadcast modes, in a single drone-mounted payload designed for aerial voice command and public address operations.

• 140 dB maximum sound pressure with over 1000-metre effective range: Projects voice commands, pre-recorded messages, and live audio across the distances required for crowd management, SAR area broadcasts, and emergency public address operations from altitude. At 10 metres, the sound pressure remains at 120 dB, maintaining effective penetration in high-ambient-noise environments on the ground.
• Three-axis anti-shake micro PTZ with 1080p full HD camera: The integrated three-axis stabilised pan-tilt camera provides precision imaging and recording alongside audio broadcast, enabling operators to monitor the area being addressed, confirm message reception, and capture video documentation of the operation simultaneously without a separate camera payload.
• Text-to-speech, real-time announcement, and audio file playback modes: Multiple broadcast modes adapt to different operational requirements. Text-to-speech converts written messages to spoken audio for pre-planned broadcasts. Real-time announcement passes live microphone audio from the operator directly to the payload. Recorded audio file playback enables repeating pre-scripted messages without live operator input throughout extended operations.
• Colour screen handheld microphone with 0 to 90-degree pitch adjustment: The included colour screen handheld microphone provides operator control of broadcast settings in the field. The 0 to 90-degree pitch adjustment range directs audio projection toward the target area from altitude, while the quick-release adapter ring, robust heat dissipation design, and three-pronged prevention construction support reliable operation across extended deployment periods.
• Designed specifically for the DJI Matrice 300: Purpose-built mounting and integration for the M300 platform enables straightforward installation without custom fabrication, keeping pre-mission setup time minimal and payload security reliable during flight.

Overview and Who It's For

The MP140 LRAD is designed for public safety agencies, emergency management organisations, search and rescue teams, and law enforcement aerial units operating the DJI Matrice 300 who need long-range aerial voice projection capability for crowd management, area evacuation broadcasts, SAR subject contact, and emergency communications in environments where ground-based speakers cannot reach or where personnel safety requires maintaining aerial standoff distance. Contact Candrone's Solutions team to discuss configuration and operational requirements before purchase.

Primary verticals:

• Public Safety: Aerial voice command for SAR operations, evacuation broadcasts, crowd management, emergency area warnings, and law enforcement public address from altitude across distances exceeding 1000 metres.
• Civil and Power: Site safety broadcasts, exclusion zone warnings, and emergency communications for large infrastructure project sites where personnel coverage across extensive areas from a single aerial platform reduces ground crew requirements.

Key Specs

What's Included

• MP140 LRAD payload unit x1
• Colour screen handheld microphone x1

Confirm complete in-box contents with Candrone at point of order. DJI Matrice 300 sold separately.

Regulatory and Compliance

Regulations are subject to change. Always verify current Transport Canada RPAS requirements at tc.canada.ca before each operation.

FAQs

Can the MP140 be used for live voice broadcast from the operator on the ground?
Yes. In real-time announcement mode, audio from the colour screen handheld microphone is transmitted directly to the payload and projected from altitude during flight, enabling live voice communication from the ground operator to personnel or civilians in the broadcast area below.

Is the MP140 compatible with the DJI Matrice 350 RTK?
The source specification lists compatibility with the DJI Matrice 300. Confirm compatibility with the Matrice 350 RTK with Candrone before purchase, as mounting and integration may differ between M300 and M350 airframes.

Can audio files be pre-loaded for automated broadcast without an operator actively transmitting?
Yes. The recorded audio file playback mode allows pre-scripted messages to be played back repeatedly during flight without live operator input, enabling sustained broadcast operations during extended SAR searches, evacuation management, and similar scenarios.

Warranty and Returns

This product includes a standard manufacturer warranty. Candrone's standard return and exchange policy applies.

View Candrone's Warranty and Returns Policy

For support or to speak with a solutions specialist, contact our team at 1-888-461-5742 or visit our Contact page.